Devil's staircases and supersolids in a one-dimensional dipolar Bose gas

F. J. Burnell, Meera M. Parish, N. R. Cooper, and S. L. Sondhi
We consider a single-component gas of dipolar bosons confined in a one-dimensional optical lattice, where the dipoles are aligned such that the long-ranged dipolar interactions are maximally repulsive. In the limit of zero intersite hopping and sufficiently large on-site interaction, the phase diagr ... [Phys. Rev. B 80, 174519 (2009)] published Thu Nov 19, 2009.

Nonperturbative theory of type-II superconductivity in the presence of a strong Pauli paramagnetic effect

V. Zhuravlev and T. Maniv
The unusual low-temperature superconducting (SC) phase transitions following the competition between orbital and spin electron pair breaking, characterizing clean, heavy fermion, strongly type-II superconductors at high magnetic fields, are investigated within a nonperturbaive approach, which enable ... [Phys. Rev. B 80, 174520 (2009)] published Thu Nov 19, 2009.

Toroidal moment in the molecular magnet V

A. K. Zvezdin, V. V. Kostyuchenko, A. I. Popov, A. F. Popkov, and A. Ceulemans
Quantum-mechanical calculations predict the existence of toroidal spin structure in the molecular magnet V. It is shown that nonzero toroidal moment arises from symmetry violation of the exchange interactions between spins of the base triangle of the V molecule due to the Jahn-Teller effect. It is e ... [Phys. Rev. B 80, 172404 (2009)] published Thu Nov 19, 2009.

Nucleation and first-stage growth processes of extrinsic defects in GaAs triggered by self-interstitials

F. Gala and G. Zollo
The growth process of small self-interstitial clusters I (n<=7) in crystalline GaAs has been addressed by semi-empirical tight-binding molecular-dynamics technique. The I ground-state structures have been found among many possible choices of topological properties and stoichiometric compositions. Th ... [Phys. Rev. B 80, 174113 (2009)] published Thu Nov 19, 2009.

High-pressure Raman and x-ray diffraction studies on LaB

B. K. Godwal, E. A. Petruska, S. Speziale, J. Yan, S. M. Clark et al.
X-ray diffraction measurements and Raman spectroscopy at room temperature document the equation of state and the frequency shifts for E, T, and A vibrational modes of polycrystalline LaB under pressure. The data exhibit smooth pressure dependencies, yielding a zero-pressure isothermal bulk modulus K ... [Phys. Rev. B 80, 172104 (2009)] published Thu Nov 19, 2009.

Key role of the wetting layer in revealing the hidden path of Ge/Si(001) Stranski-Krastanow growth onset

Moritz Brehm, Francesco Montalenti, Martyna Grydlik, Guglielmo Vastola, Herbert Lichtenberger et al.
The commonly accepted Stranski-Krastanow model, according to which island formation occurs on top of a wetting layer (WL) of a certain thickness, predicts for the morphological evolution an increasing island aspect ratio with volume. We report on an apparent violation of this thermodynamic understan ... [Phys. Rev. B 80, 205321 (2009)] published Thu Nov 19, 2009.

Stopping of energetic cobalt clusters and formation of radiation damage in graphite

Vladimir N. Popok, Sasa VuCkovic, Juha Samela, Tommi T. Jarvi, Kai Nordlund et al.
The interaction of energetic (up to 200 eV/atom) size-selected Co clusters with HOPG is studied both experimentally and theoretically. Etching of the radiation damaged areas introduced by cluster impacts provides a measure of the depth to which the collision cascades are developed and allows a compa ... [Phys. Rev. B 80, 205419 (2009)] published Thu Nov 19, 2009.

Modeling charge-imbalanced NaNbO/SrTiO superlattices: Lattice relaxation and metallicity

Riku Oja and Risto M. Nieminen
The electronic and structural properties of different charge-imbalanced perovskite oxide NaNbO/SrTiO superlattices are investigated with density-functional theory (local density approximation and local spin density approximation+U) methods. Metallic or insulating behavior of such a superlattice depe ... [Phys. Rev. B 80, 205420 (2009)] published Thu Nov 19, 2009.

Terahertz photoresponse of a quantum Hall edge-channel diode

Christian Notthoff, Kevin Rachor, Detlef Heitmann, and Axel Lorke
The terahertz (THz) photoresponse of a two-dimensional electron gas in the quantum Hall regime is investigated. We use a sample structure which is topologically equivalent to a Corbino geometry combined with a cross-gate technique. This quasi-Corbino geometry allows us to directly investigate the TH ... [Phys. Rev. B 80, 205320 (2009)] published Thu Nov 19, 2009.

Influence of the substrate bands on the sp-levels topology of Ag films on Ge(111)

P. Moras, D. Topwal, P. M. Sheverdyaeva, L. Ferrari, J. Fujii et al.
Angle-resolved photoemission spectroscopy and first-principles calculations were employed to analyze unusual features in the electronic structure of ultrathin Ag films grown on Ge(111). The Ag sp-derived quantum well states exhibit hexagonal-like constant energy contours with different in-plane orie ... [Phys. Rev. B 80, 205418 (2009)] published Thu Nov 19, 2009.

Cooperative mechanism for anchoring highly polar molecules at an ionic surface

J. Schutte, R. Bechstein, M. Rohlfing, M. Reichling, and A. Kuhnle
Structure formation of the highly polar molecule cytosine on the (111) cleavage plane of calcium fluoride is investigated in ultrahigh vacuum using noncontact atomic force microscopy at room temperature. Molecules form well-defined trimer structures, covering the surface as homogeneously distributed ... [Phys. Rev. B 80, 205421 (2009)] published Thu Nov 19, 2009.

High-temperature ferromagnetism by means of oriented nanocolumns: Co clustering in (Zn,Co)O

N. Jedrecy, H. J. von Bardeleben, and D. Demaille
In order to provide insight into the magnetic properties of semiconductors with ferromagnetic inclusions, we present a thorough quantitative analysis of (Zn,Co)O films with high Co concentration, which give rise to high saturation magnetization values (~110 kA m) at room temperature. From the orien ... [Phys. Rev. B 80, 205204 (2009)] published Thu Nov 19, 2009.

GW investigation of interface-induced correlation effects on transport properties in realistic nanoscale structures

Changsheng Li, M. Bescond, and M. Lannoo
We report a theoretical investigation of long-range correlation effects induced by the presence of interfaces in realistic semiconductor based nanoscale structures. This is performed within the so-called GW approximation of Hedin and Lundqvist in which we isolate the contribution of the interfaces w ... [Phys. Rev. B 80, 195318 (2009)] published Thu Nov 19, 2009.

Band-gap tunability of a (6,0) BN nanotube bundle under pressure: Ab initio calculations

S. S. Coutinho, V. Lemos, and S. Guerini
Ab initio calculations were performed to study the structural transformation on a boron nitride nanotubes bundle under pressure. Several bundles of boron nitride nanotubes, disposed into a hexagonal arrangement, were studied between which the (6,0) zigzag configuration was chosen to be detailed here ... [Phys. Rev. B 80, 193408 (2009)] published Thu Nov 19, 2009.

Quantum confinement and thermal effects on the Raman spectra of Si nanocrystals

Giuseppe Faraci, Santo Gibilisco, and Agata R. Pennisi
In nanocrystals, first-order Raman spectra can exhibit large shift and width due to two overlapping effects: quantum confinement and thermal heating. In order to distinguish each contribution we studied silicon nanocrystals by Raman spectroscopy. From the measurements we extracted the dependence of ... [Phys. Rev. B 80, 193410 (2009)] published Thu Nov 19, 2009.

Spin-charge decoupling and the photoemission line-shape in one-dimensional insulators

Valeria Lante and Alberto Parola
The recent advances in angle-resolved photoemission techniques allowed the unambiguous experimental confirmation of spin-charge decoupling in quasi-one-dimensional (1D) Mott insulators. This opportunity stimulates a quantitative analysis of the spectral function A(k,omega) of prototypical one-dimens ... [Phys. Rev. B 80, 195113 (2009)] published Thu Nov 19, 2009.

Statistics of quantum transfer of noninteracting fermions in multiterminal junctions

Dania Kambly and D. A. Ivanov
Similarly to the recently obtained result for two-terminal systems, we show that there are constraints on the full counting statistics for noninteracting fermions in multiterminal contacts. In contrast to the two-terminal result, however, there is no factorization property in the multiterminal case. ... [Phys. Rev. B 80, 193306 (2009)] published Thu Nov 19, 2009.

Low-temperature observation of the softened C-H stretching vibrations of cyclohexane on Rh(111)

Takanori Koitaya, Atsushi Beniya, Kozo Mukai, Shinya Yoshimoto, and Jun Yoshinobu
The C-H stretching vibrations of cyclohexane on Rh(111) were investigated using infrared reflection absorption spectroscopy between 20 and 89 K. At 20 K, the softened C-H stretching band consists of several sharp peaks, ranging from 2500 to 2700 cm. The wide-range distribution of the softened C-H s ... [Phys. Rev. B 80, 193409 (2009)] published Thu Nov 19, 2009.

Stabilization of large silicon fullerenes and related nanostructures through puckering and poly(oligo)merization

Aristides D. Zdetsis
The structure, symmetry, and stability of large SiH, n=60, 70, 76, 80, and 180 cages and the SiH ligomers: SiH, SiH, and SiH, together with some related fullerenes and nanostructures, are studied by ab initio density functional theory and second order Moller-Plesset perturbation theory (for SiH). It ... [Phys. Rev. B 80, 195417 (2009)] published Thu Nov 19, 2009.

Exciton diffusion in energetically disordered organic materials

Stavros Athanasopoulos, Evguenia V. Emelianova, Alison B. Walker, and David Beljonne
We implement a simple, continuous, analytical model for exciton hopping in an energetically disordered molecular landscape. The model is parameterized against atomistic and lattice Monte Carlo simulations based on quantum-chemical calculations. It captures the essential physics of exciton diffusion ... [Phys. Rev. B 80, 195209 (2009)] published Thu Nov 19, 2009.

Electron spin decoherence in diluted magnetic quantum wells

P. M. Shmakov, A. P. Dmitriev, and V. Yu. Kachorovskii
We study electron-spin dynamics in diluted magnetic quantum wells. The electrons are coupled by exchange interaction with randomly distributed magnetic ions polarized by magnetic field B. This coupling leads to both spin relaxation and spin decoherence. We demonstrate that even very small spatial fl ... [Phys. Rev. B 80, 193205 (2009)] published Thu Nov 19, 2009.

Scaling of the superfluid density in strongly underdoped YBaCuO: Evidence for a Josephson phase

C. C. Homes
Recent measurements on extremely underdoped YBaCuO [Phys. Rev. Lett. 99, 237003 (2007)] have allowed the critical temperature T, superfluid density rho[equivalent]rho(T<~T) to be determined for a series of electronic dopings for T~=317 K. The general scaling relatio ... [Phys. Rev. B 80, 180509 (2009)] published Thu Nov 19, 2009.

Phonon density of states and heat capacity of LaTe

O. Delaire, A. F. May, M. A. McGuire, W. D. Porter, M. S. Lucas et al.
The phonon density of states (DOS) of LaTe compounds (x=0.0,0.18,0.32) was measured at 300, 520, and 780 K, using inelastic neutron scattering. A significant stiffening of the phonon DOS and a large broadening of features were observed upon introduction of vacancies on La sites (increasing x). Heat- ... [Phys. Rev. B 80, 184302 (2009)] published Thu Nov 19, 2009.

Effect of microstructure on magnetic properties and anisotropy distributions in Co/Pd thin films and nanostructures

Justin M. Shaw, Hans T. Nembach, T. J. Silva, Stephen E. Russek, Roy Geiss et al.
The structure of Co/Pd multilayers has a strong effect on the localized anisotropy distribution within a film and on the resulting switching properties of nanostructures fabricated from identical material. By varying the underlying seed layer in sputtered films, the microstructure can be controlled ... [Phys. Rev. B 80, 184419 (2009)] published Thu Nov 19, 2009.

Finite-temperature spin dynamics and phase transitions in spin-orbital models

C.-C. Chen, B. Moritz, J. van den Brink, T. P. Devereaux, and R. R. P. Singh
We study finite temperature properties of a generic spin-orbital model relevant to transition metal compounds, having coupled quantum Heisenberg-spin and Ising-orbital degrees of freedom. The model system undergoes a phase transition, consistent with that of a two-dimensional Ising model, to an orbi ... [Phys. Rev. B 80, 180418 (2009)] published Thu Nov 19, 2009.

Expansion-limited aggregation of nanoclusters in a single-pulse laser-produced plume

E. G. Gamaly, N. R. Madsen, D. Golberg, and A. V. Rode
Formation of carbon nanoclusters in a single-laser-pulse created ablation plume was studied both in vacuum and in a noble gas environment at various pressures. The developed theory provides cluster radius dependence on combination of laser parameters, properties of ablated material, and type and pre ... [Phys. Rev. B 80, 184113 (2009)] published Thu Nov 19, 2009.

Spin-density wave in Cr: Nesting versus low-lying thermal excitations

Veerle Vanhoof, Michel Rots, and Stefaan Cottenier
It is well known that present versions of density functional theory do not predict the experimentally observed spin-density wave state to be the ground state of Cr. Recently, a so-called nodon model has been proposed as an alternative way to reconcile theory and experiment: the ground state of Cr is ... [Phys. Rev. B 80, 184420 (2009)] published Thu Nov 19, 2009.

Competing interactions in ferromagnetic/antiferromagnetic perovskite superlattices

Y. Takamura, F. Yang, N. Kemik, E. Arenholz, M. D. Biegalski et al.
Soft x-ray magnetic dichroism, magnetization, and magnetotransport measurements demonstrate that the competition between different magnetic interactions (exchange coupling, electronic reconstruction, and long-range interactions) in LaSrFeO(LSFO)/LaSrMnO(LSMO) perovskite oxide superlattices leads to ... [Phys. Rev. B 80, 180417 (2009)] published Thu Nov 19, 2009.

Dirac electrons in a Kronig-Penney potential: Dispersion relation and transmission periodic in the strength of the barriers

M. Barbier, P. Vasilopoulos, and F. M. Peeters
The transmission T and conductance G through one or multiple one-dimensional, delta-function barriers of two-dimensional fermions with a linear energy spectrum are studied. T and G are periodic functions of the strength P of the delta-function barrier V(x,y)/[h-bar]v=Pdelta(x). The dispersion relati ... [Phys. Rev. B 80, 205415 (2009)] published Wed Nov 18, 2009.

Gamma valence band symmetry related hole fine splitting of bound excitons in ZnO observed in magneto-optical studies

Markus R. Wagner, Jan-Hindrik Schulze, Ronny Kirste, Munise Cobet, Axel Hoffmann et al.
The symmetry ordering of the valence bands in ZnO is derived from high-resolution magneto-optical measurements of bound excitons. We report on the experimental observation of a hole state related fine splitting for bound excitons in the Voigt configuration. This splitting is related to a nonzero Lan ... [Phys. Rev. B 80, 205203 (2009)] published Wed Nov 18, 2009.

Extended excitons and compact heliumlike biexcitons in type-II quantum dots

Bhavtosh Bansal, S. Godefroo, M. Hayne, G. Medeiros-Ribeiro, and V. V. Moshchalkov
We have used magnetophotoluminescence measurements to establish that InP/GaAs quantum dots have a type-II (staggered) band alignment. The average excitonic Bohr radius and the binding energy are estimated to be 15 nm and 1.5 meV, respectively. When compared to bulk InP, the excitonic binding is weak ... [Phys. Rev. B 80, 205317 (2009)] published Wed Nov 18, 2009.

Controlling and enhancing terahertz collective electron dynamics in superlattices by chaos-assisted miniband transport

M. T. Greenaway, A. G. Balanov, E. Scholl, and T. M. Fromhold
We show that a tilted magnetic field transforms the structure and THz dynamics of charge domains in a biased semiconductor superlattice. At critical field values, strong coupling between the Bloch and cyclotron motion of a miniband electron triggers chaotic delocalization of the electron orbits, cau ... [Phys. Rev. B 80, 205318 (2009)] published Wed Nov 18, 2009.

Pressure-induced structural and electronic transitions in FeOOH from first principles

Katrin Otte, Rossitza Pentcheva, Wolfgang W. Schmahl, and James R. Rustad
Using density-functional theory, we investigate the stability, structural, magnetic, and electronic properties of the iron oxyhydroxide polymorphs [alpha-, beta-, gamma-, and hp(epsilon)-FeOOH] under hydrostatic pressure. At ambient conditions goethite (alpha) is the lowest energy phase, consistent ... [Phys. Rev. B 80, 205116 (2009)] published Wed Nov 18, 2009.

Role of electronic excitations in the energy loss of H projectiles in high-kappa materials

S. M. Shubeita, R. C. Fadanelli, J. F. Dias, P. L. Grande, C. D. Denton et al.
In the present work we report on the energy loss ratio R of fast H clusters in thin films (3050 A) of LaScO and HfO. The medium energy ion scattering technique was employed covering a broad energy range (40200 keV/amu). The energy loss ratio data showed no clear evidence of collective excitations i ... [Phys. Rev. B 80, 205316 (2009)] published Wed Nov 18, 2009.

Antibonding plasmon mode coupling of an individual hole in a thin metallic film

J. W. Lee, T. H. Park, Peter Nordlander, and Daniel M. Mittleman
The polarization dependence of the optical properties of individual subwavelength holes in a thin metallic film is studied using terahertz time-domain spectroscopy. We show that for parallel polarization of the incident light, the coupling is predominantly to short-range bonding film plasmons while ... [Phys. Rev. B 80, 205417 (2009)] published Wed Nov 18, 2009.

Photon absorption edge in superconductors and gapped one-dimensional systems

V. V. Mkhitaryan, E. G. Mishchenko, M. E. Raikh, and L. I. Glazman
Opening of a gap in the low-energy excitations spectrum affects the power-law singularity in the photon absorption spectrum A(Omega). In the normal state, the singularity, A(Omega)[proportional][D/(OmegaOmega)], is characterized by an interaction-dependent exponent alpha. On the contrary, in the sup ... [Phys. Rev. B 80, 205416 (2009)] published Wed Nov 18, 2009.

Masses in graphenelike two-dimensional electronic systems: Topological defects in order parameters and their fractional exchange statistics

Shinsei Ryu, Christopher Mudry, Chang-Yu Hou, and Claudio Chamon
We classify all possible 36 gap-opening instabilities in graphenelike structures in two dimensions, i.e., masses of Dirac Hamiltonian when the spin, valley, and superconducting channels are included. These 36 order parameters break up into 56 possible quintuplets of masses that add in quadrature and ... [Phys. Rev. B 80, 205319 (2009)] published Wed Nov 18, 2009.

Phonon-assisted transitions from quantum dot excitons to cavity photons

Ulrich Hohenester, Arne Laucht, Michael Kaniber, Norman Hauke, Andre Neumann et al.
For a single semiconductor quantum dot embedded in a microcavity, we theoretically and experimentally investigate phonon-assisted transitions between excitons and the cavity mode. Within the framework of the independent boson model we find that such transitions can be very efficient, even for relati ... [Phys. Rev. B 80, 201311 (2009)] published Wed Nov 18, 2009.

Coherent transport in semiconductor heterostructures: A phenomenological approach

Ariel Gordon and Daniel Majer
We propose a theoretical method for describing coherent quantum transport in semiconductor heterostructures and particularly in quantum cascade lasers (QCLs). The method is an extension of standard rate-equation models to include coherence. Instead of building the model from microscopic consideratio ... [Phys. Rev. B 80, 195317 (2009)] published Wed Nov 18, 2009.

Hard energy gap and current-path switching in ordered two-dimensional nanodot arrays prepared by focused electron-beam-induced deposition

Roland Sachser, Fabrizio Porrati, and Michael Huth
We present electronic transport measurements on ordered two-dimensional nanodot arrays with dot diameters of about 20 nm prepared by focused electron-beam-induced deposition (FEBID). Low-temperature conductance measurements and I/V characteristics strongly indicate that single electron transport thr ... [Phys. Rev. B 80, 195416 (2009)] published Wed Nov 18, 2009.

Effects of repulsive and attractive ionized impurities on the resistivity of semiconductor heterostructures in the quantum Hall regime

A. Raymond, I. Bisotto, Y. M. Meziani, S. Bonifacie, C. Chaubet et al.
We have investigated experimentally and theoretically the effect of repulsive and attractive ionized impurities on the resistivity components (rho and rho) in the quantum Hall effect regime. GaAs/GaAlAs asymmetric modulation-doped quantum wells with additional delta doping (by Si donor atoms or Be a ... [Phys. Rev. B 80, 195316 (2009)] published Wed Nov 18, 2009.

Ultranarrow coupling-induced transparency bands in hybrid plasmonic systems

Thomas Zentgraf, Shuang Zhang, Rupert F. Oulton, and Xiang Zhang
Plasmons in nanoscale structures represent an exciting new route toward efficient manipulation of photons, especially at subwavelength scales. Of particular interest are the hybridized plasmonic systems, in which the interaction among the plasmonic elements can be utilized to tailor the optical resp ... [Phys. Rev. B 80, 195415 (2009)] published Wed Nov 18, 2009.

Localized atomic basis set in the projector augmented wave method

A. H. Larsen, M. Vanin, J. J. Mortensen, K. S. Thygesen, and K. W. Jacobsen
We present an implementation of localized atomic-orbital basis sets in the projector augmented wave (PAW) formalism within the density-functional theory. The implementation in the real-space GPAW code provides a complementary basis set to the accurate but computationally more demanding grid represen ... [Phys. Rev. B 80, 195112 (2009)] published Wed Nov 18, 2009.

Changing the physical and chemical properties of titanium oxynitrides TiNO by changing the composition

Jesus Graciani, Said Hamad, and Javier Fdez. Sanz
The stability and structural properties of titanium oxynitrides, TiNO, of different compositions are theoretically analyzed by means of first-principles periodic density-functional calculations. We show that at x=0.550.6 there is a change in the preferred structure from that of NaCl type to the alph ... [Phys. Rev. B 80, 184112 (2009)] published Wed Nov 18, 2009.

Elastic constants of the single crystalline Yb based heavy-fermion compound YbCoZn

Yoshiki Nakanishi, Takuya Fujino, Kankichi Ito, Mitsuteru Nakamura, Masahito Yoshizawa et al.
Ultrasonic measurements have been carried out on the heavy-fermion compound YbCoZn to investigate the elastic properties and the 4f electric state of Yb ion. A strong temperature dependence at low temperature was found in elastic constants C, (CC)/2, and C of YbCoZn. Furthermore, the elastic constan ... [Phys. Rev. B 80, 184418 (2009)] published Wed Nov 18, 2009.

Field distributions in curved superconducting tapes conforming to a cylinder carrying transport currents

Yasunori Mawatari
Current and magnetic field distributions in curved superconducting tapes are investigated theoretically. The geometry of superconducting tapes considered here is a section of a cylindrical shell in which the length of tape lies parallel to the long axis of the cylinder. Analytical investigation base ... [Phys. Rev. B 80, 184508 (2009)] published Wed Nov 18, 2009.

3d transition metal impurities in aluminum: A first-principles study

M. Mantina, S. L. Shang, Y. Wang, L. Q. Chen, and Z. K. Liu
In this work, appropriate description of interactions of 3d transition metals in aluminum (Al-3d) is attained from first-principles using LDA+U potential within density-functional theory. By reproducing diffusion coefficients of 3d transition metals in aluminum in agreement with reliable data from e ... [Phys. Rev. B 80, 184111 (2009)] published Wed Nov 18, 2009.

Anisotropy of the spin density wave onset for (TMTSF)PF in a magnetic field

Ya. A. Gerasimenko, V. A. Prudkoglyad, A. V. Kornilov, V. M. Pudalov, V. N. Zverev et al.
In order to study the spin density wave transition temperature (T) in (TMTSF)PF as a function of magnetic field, we measured the magnetoresistance R in fields up to 19 T. Measurements were performed for three field orientations B||a,b and c at ambient pressure and at P=5 kbar, that is nearly the cr ... [Phys. Rev. B 80, 184417 (2009)] published Wed Nov 18, 2009.

Quantum nondemolition measurements of a qubit coupled to a harmonic oscillator

Luca Chirolli and Guido Burkard
We theoretically describe the weak measurement of a two-level system (qubit) and quantify the degree to which such a qubit measurement has a quantum nondemolition (QND) character. The qubit is coupled to a harmonic oscillator, which undergoes a projective measurement. Information on the qubit state ... [Phys. Rev. B 80, 184509 (2009)] published Wed Nov 18, 2009.

Selection-rule blockade and rectification in quantum heat transport

Teemu Ojanen
We present a thermal transport phenomenon, a unidirectional selection-rule blockade, and show how it produces unprecedented rectification of bosonic heat flow through molecular or mesoscopic quantum systems. Rectification arises from the quantization of energy levels of the conduction element and se ... [Phys. Rev. B 80, 180301 (2009)] published Wed Nov 18, 2009.

Collective cavity mode excitations in arrays of Josephson junctions

I. Ottaviani, M. Cirillo, M. Lucci, V. Merlo, M. Salvato et al.
We report on oscillations of a Josephson-junction system revealing a close analogy with fundamental effects known in laser physics. The experiments are performed on series arrays of junctions whose IV curves show evidence of a mode in which all the junctions oscillate in synchronism on resonances ap ... [Phys. Rev. B 80, 174518 (2009)] published Wed Nov 18, 2009.

Intrinsic pinning on structural domains in underdoped single crystals of Ba(FeCo)As

R. Prozorov, M. A. Tanatar, N. Ni, A. Kreyssig, S. Nandi et al.
Critical current density was studied in single crystals of Ba(FeCo)As for the values of x spanning the entire doping phase diagram. A noticeable enhancement was found for slightly underdoped crystals with the peak at x=0.058. Using a combination of polarized-light imaging, x-ray diffraction and magn ... [Phys. Rev. B 80, 174517 (2009)] published Wed Nov 18, 2009.

Anisotropy barrier reduction in fast-relaxing Mn single-molecule magnets

Stephen Hill, Muralee Murugesu, and George Christou
An angle-swept high-frequency electron paramagnetic resonance (HFEPR) technique is described that facilitates efficient in situ alignment of single-crystal samples containing low-symmetry magnetic species such as single-molecule magnets (SMMs). This cavity-based technique involves recording HFEPR sp ... [Phys. Rev. B 80, 174416 (2009)] published Wed Nov 18, 2009.

Subpicosecond coherent nonlinear optical response of isolated single-walled carbon nanotubes

S. Tao, Y. Miyata, K. Yanagi, H. Kataura, and H. Okamoto
We report an excitation-energy dependence of ultrafast changes of exciton absorptions in isolated semiconducting single-walled carbon nanotubes. For a photoexcitation far below the exciton transition, a blueshift of exciton absorptions originating from the optical Stark effect due to exciton-photon ... [Phys. Rev. B 80, 201405 (2009)] published Tue Nov 17, 2009.

Azobenzene at coinage metal surfaces: Role of dispersive van der Waals interactions

Erik R. McNellis, Jorg Meyer, and Karsten Reuter
We use different semiempirical dispersion correction schemes to assess the role of long-range van der Waals interactions in the adsorption of the prototypical molecular switch azobenzene (CH-N-CH) at the coinage metal surfaces Cu(111), Ag(111), and Au(111). Compared to preceding density-functional t ... [Phys. Rev. B 80, 205414 (2009)] published Tue Nov 17, 2009.

Hyperfine-induced valley mixing and the spin-valley blockade in carbon-based quantum dots

Andras Palyi and Guido Burkard
Hyperfine interaction (HFI) in carbon nanotube and graphene quantum dots is due to the presence of C atoms. We theoretically show that in these structures the short-range nature of the HFI gives rise to a coupling between the valley degree of freedom of the electron and the nuclear spin, in addition ... [Phys. Rev. B 80, 201404 (2009)] published Tue Nov 17, 2009.

Bilayer quantum Hall system at nu=1: Pseudospin models and in-plane magnetic field

O. Tieleman, A. Lazarides, D. Makogon, and C. Morais Smith
We investigate two theoretical pseudomagnon-based models for a bilayer quantum Hall system (BQHS) at total filling factor nu=1. We find a unifying framework which elucidates the different approximations that are made. We also consider the effect of an in-plane magnetic field in BQHSs at nu=1, by der ... [Phys. Rev. B 80, 205315 (2009)] published Tue Nov 17, 2009.

Experimental demonstration of a nonmagnetic metamaterial cloak at microwave frequencies

Boubacar Kante, Dylan Germain, and Andre de Lustrac
Metamaterials have paved the way to unprecedented control of the electromagnetic field. The conjunction with space coordinate transformation has led to a relativity inspired approach for the control of light propagation. Invisibility cloak is the most fascinating proposed device. However, the realiz ... [Phys. Rev. B 80, 201104 (2009)] published Tue Nov 17, 2009.

Defect-induced optical absorption in the visible range in ZnO nanowires

R. Michael Sheetz, Inna Ponomareva, Ernst Richter, Antonis N. Andriotis, and Madhu Menon
The optical properties of ZnO nanowires containing defects are investigated using first-principles density-functional theory incorporating the LDA+U formalism. Calculations include defects in the form of substitutional N, Zn, and O vacancies as well as +1 charged O vacancy. Our calculations reveal t ... [Phys. Rev. B 80, 195314 (2009)] published Tue Nov 17, 2009.

Nonadiabatic spin-transfer torque in (Ga,Mn)As with perpendicular anisotropy

J.-P. Adam, N. Vernier, J. Ferre, A. Thiaville, V. Jeudy et al.
Current-induced magnetic domain wall motion has been investigated in microtracks made from a ferromagnetic semiconductor (Ga,Mn)As thin film with perpendicular anisotropy. In order to reveal the nature of this motion, small fields were additionally applied. The results demonstrate that, when driven ... [Phys. Rev. B 80, 193204 (2009)] published Tue Nov 17, 2009.

Fast update algorithm for the quantum Monte Carlo simulation of the Hubbard model

Phani K. V. V. Nukala, Thomas A. Maier, Michael S. Summers, Gonzalo Alvarez, and Thomas C. Schulthess
This paper presents an efficient algorithm for computing the transition probability in auxiliary field quantum Monte Carlo simulations of strongly correlated electron systems using a Hubbard model. This algorithm is based on a low rank updating of the underlying linear algebra problem, and results i ... [Phys. Rev. B 80, 195111 (2009)] published Tue Nov 17, 2009.

Conductance distribution in doped and defected graphene nanoribbons

Antonino La Magna, Ioannis Deretzis, Giuseppe Forte, and Renato Pucci
Electronic transport at the [mu]m length scale is theoretically investigated for N-doped and vacancy damaged graphene nanoribbons. In these systems, localization due to scattering is strongly energy dependent, and this fact leads to the appearance of conductance quasigaps in the spectral region of t ... [Phys. Rev. B 80, 195413 (2009)] published Tue Nov 17, 2009.

Atomic nature of the Si-B4 paramagnetic center assessed by multifrequency electron spin resonance

K. Keunen and A. Stesmans
An electron spin resonance (ESR) study has been carried out in the range 4.2120 K on the trigonal Si-B4 center in annealed (200350 degrees C) neutron-irradiated p-type Si. Detailed observations reveal a rich Si hyperfine (hf) structure, indicating interaction of the unpaired electron with up to fiv ... [Phys. Rev. B 80, 195207 (2009)] published Tue Nov 17, 2009.

Simultaneously optimizing the interdependent thermoelectric parameters in Ce(NiCu)Al

Peijie Sun, Tsuyoshi Ikeno, Toshio Mizushima, and Yosikazu Isikawa
Substitution of Cu for Ni in the Kondo lattice system CeNiAl results in a simultaneous optimization of the three interdependent thermoelectric parameters: thermoelectric power, electrical, and thermal conductivities, where the electronic change in conduction band induced by the extra electron of Cu ... [Phys. Rev. B 80, 193105 (2009)] published Tue Nov 17, 2009.

Local density of states of electron-crystal phases in graphene in the quantum Hall regime

O. Poplavskyy, M. O. Goerbig, and C. Morais Smith
We calculate, within a self-consistent Hartree-Fock approximation, the local density of states for different electron crystals in graphene subject to a strong magnetic field. We investigate both the Wigner crystal and bubble crystals with M electrons per lattice site. The total density of states con ... [Phys. Rev. B 80, 195414 (2009)] published Tue Nov 17, 2009.

Temperature dependence of the electronic structure of the J=(1/2) Mott insulator SrIrO studied by optical spectroscopy

S. J. Moon, Hosub Jin, W. S. Choi, J. S. Lee, S. S. A. Seo et al.
We investigated the temperature-dependent evolution of the electronic structure of the J=(1/2) Mott insulator SrIrO using optical spectroscopy. The optical conductivity spectra sigma(omega) of this compound has recently been found to exhibit two d-d transitions associated with the transition between ... [Phys. Rev. B 80, 195110 (2009)] published Tue Nov 17, 2009.

Gradient elasticity and flexural wave dispersion in carbon nanotubes

Harm Askes and Elias C. Aifantis
Higher-order elasticity theories have recently been used to predict the dispersion characteristics of flexural waves in carbon nanotubes (CNTs). In particular, nonlocal elasticity and gradient elasticity (with unstable strain gradients) have been employed within the framework of classical Euler-Bern ... [Phys. Rev. B 80, 195412 (2009)] published Tue Nov 17, 2009.

Phonon-induced dephasing of singlet-triplet superpositions in double quantum dots without spin-orbit coupling

K. Roszak and P. Machnikowski
We show that singlet-triplet superpositions of two-electron spin states in a double quantum dot undergo a phonon-induced pure dephasing which relies only on the tunnel coupling between the dots and on the Pauli-exclusion principle. As such, this dephasing process is independent of spin-orbit couplin ... [Phys. Rev. B 80, 195315 (2009)] published Tue Nov 17, 2009.

Variable range hopping transport in ferromagnetic GaGdN epitaxial layers

A. Bedoya-Pinto, J. Malindretos, M. Roever, D. D. Mai, and A. Rizzi
Electrical-transport properties of ferromagnetic GaGdN layers grown by molecular-beam epitaxy on highly resistive 6H-SiC(0001) substrates have been investigated. It is found that doping with low concentrations of Gd increases the resistivity by several orders of magnitude as compared to unintentiona ... [Phys. Rev. B 80, 195208 (2009)] published Tue Nov 17, 2009.

Momentum distribution of the hard-core extended boson Hubbard model in one dimension

Min-Chul Cha, Jong-Geun Shin, and Ji-Woo Lee
We investigate the momentum distribution associated with quantum phase transitions between a superfluid and a charge-density-wave state in the one-dimensional hard-core extended boson Hubbard model at half filling by using the Lanczos exact diagonalization method. The momentum distribution shows dis ... [Phys. Rev. B 80, 193104 (2009)] published Tue Nov 17, 2009.

Interactions between hydrogen impurities and vacancies in Mg and Al: A comparative analysis based on density functional theory

Lars Ismer, Min Sik Park, Anderson Janotti, and Chris G. Van de Walle
Using first-principles methods we have studied the interactions between hydrogen impurities and vacancies in hcp Mg and fcc Al. We find that single vacancies can, in principle, host up to 9 H atoms in Mg and 10 in Al, not 12 as recently reported in the case of Al. The difference between our results ... [Phys. Rev. B 80, 184110 (2009)] published Tue Nov 17, 2009.

Theory of electromagnon resonances in the optical response of spiral magnets

A. Cano
The optical response of spiral magnets is studied theoretically, with special attention to its electromagnon features. We show that these features trace back to the resonant magnetoelectric response resulting from the spiral ordering (irrespective of any concomitant ferroelectricity). This response, ... [Phys. Rev. B 80, 180416 (2009)] published Tue Nov 17, 2009.

Theory of small charge solitons in one-dimensional arrays of Josephson junctions

Stephan Rachel and Alexander Shnirman
We identify and investigate the parameter regime of small charge solitons in one-dimensional arrays of Josephson junctions. We obtain the dispersion relation of the soliton and show that it unexpectedly flattens in the outer region of the Brillouin zone. We demonstrate Lorentz contraction of the sol ... [Phys. Rev. B 80, 180508 (2009)] published Tue Nov 17, 2009.

Theory of dynamical scattering in near-edge electron energy loss spectroscopy

C. Witte, S. D. Findlay, M. P. Oxley, J. J. Rehr, and L. J. Allen
Beyond chemical information, the fine structure of an absorption edge gives bonding and electronic information. We provide a synthesis of fine structure and dynamical scattering theory, allowing the exploration of the effects of dynamical scattering on the measured fine structure. We discuss the eff ... [Phys. Rev. B 80, 184108 (2009)] published Tue Nov 17, 2009.

Ferromagnetic resonance linewidth in ultrathin films with perpendicular magnetic anisotropy

J.-M. Beaujour, D. Ravelosona, I. Tudosa, E. E. Fullerton, and A. D. Kent
Transition-metal ferromagnetic films with perpendicular magnetic anisotropy (PMA) have ferromagnetic resonance (FMR) linewidths that are one order of magnitude larger than soft magnetic materials, such as pure iron (Fe) and Permalloy (NiFe) thin films. A broadband FMR setup has been used to investig ... [Phys. Rev. B 80, 180415 (2009)] published Tue Nov 17, 2009.

Local density of states and superconducting gap in the iron chalcogenide superconductor FeSeTe observed by scanning tunneling spectroscopy

Takuya Kato, Yoshikazu Mizuguchi, Hiroshi Nakamura, Tadashi Machida, Hideaki Sakata et al.
We report on the investigation of the quasiparticle local density of states and superconducting gap in the iron chalcogenide superconductor FeSeTe(T~14 K). The surface of a cleaved crystal revealed an atomic square lattice, superimposed on the inhomogeneous background, with a lattice constant of ~3 ... [Phys. Rev. B 80, 180507 (2009)] published Tue Nov 17, 2009.

Temperature-dependent critical currents in superconducting YBaCuO and ferromagnetic LaCaMnO hybrid structures

M. Djupmyr, S. Soltan, H.-U. Habermeier, and J. Albrecht
The local critical current density in thin-film hybrid structures of high-temperature superconducting YBaCuO and ferromagnetic LaCaMnO (LCMO) is measured with high accuracy using a quantitative magneto-optical method. The superconducting films are grown onto vicinal cut substrates where step-flow gr ... [Phys. Rev. B 80, 184507 (2009)] published Tue Nov 17, 2009.

Magnetostructural transition in GdSbGe

A. S. Chernyshov, Ya. Mudryk, D. Paudyal, V. K. Pecharsky, K. A. Gschneidner, Jr. et al.
Magnetic and crystallographic properties of GdSbGe were investigated using dc magnetization, ac magnetic susceptibility, and heat capacity of an oriented single crystal, combined with temperature and magnetic field dependent x-ray powder diffraction. The compound undergoes an unusual magnetostructur ... [Phys. Rev. B 80, 184416 (2009)] published Tue Nov 17, 2009.

Constraints on the phase diagram of nonmolecular CO imposed by infrared spectroscopy

Mario Santoro and Federico A. Gorelli
The investigation of the high-pressure phase diagram of CO, specifically in the nonmolecular forms, is a challenging experimental issue, due to the large metastability of this material. Here we report on the determination of the pressure threshold for forming nonmolecular CO from the molecular cryst ... [Phys. Rev. B 80, 184109 (2009)] published Tue Nov 17, 2009.

Driving-induced crossover in the avalanche criticality of martensitic transitions

Eduard Vives, Daniel Soto-Parra, Lluis Manosa, Ricardo Romero, and Antoni Planes
An experimental study of the statistical distribution of acoustic emission avalanches in martensitic transitions is presented. The critical exponents characterizing the power-law distributions of avalanches are measured as a function of cycling under soft-driving (stress-driving) and hard-driving (s ... [Phys. Rev. B 80, 180101 (2009)] published Tue Nov 17, 2009.

Charge ratchet from spin flip: Space-time symmetry paradox

Sergey Smirnov, Dario Bercioux, Milena Grifoni, and Klaus Richter
Traditionally the charge ratchet effect is considered as a consequence of either the spatial symmetry breaking engineered by asymmetric periodic potentials, or time asymmetry of the driving fields. Here we demonstrate that electrically and magnetically driven quantum dissipative systems with spin-or ... [Phys. Rev. B 80, 201310 (2009)] published Mon Nov 16, 2009.

Spin injection across the Fe/GaAs interface: Role of interfacial ordering

B. D. Schultz, N. Marom, D. Naveh, X. Lou, C. Adelmann et al.
Spin injection efficiency is shown to strongly depend on the interfacial structure between Fe contacts and AlGaAs in spin-based light emitting diodes. Both the magnitude and sign of the injected carriers are dependent on the atomic structure of the contacts and can be controlled through changes in t ... [Phys. Rev. B 80, 201309 (2009)] published Mon Nov 16, 2009.

Resonant cavitylike modes in dielectric photonic crystals made of collections of subwavelength cylinders

Ruey-Lin Chern and Didier Felbacq
We investigate resonant cavitylike modes in dielectric photonic crystals made of collections of subwavelength cylinders with high permittivity. A large number of collective modes appear for TE polarization (where magnetic fields are oriented along the cylinder axis), which possess similar features o ... [Phys. Rev. B 80, 205115 (2009)] published Mon Nov 16, 2009.

Exciton polaritons in two-dimensional photonic crystals

D. Bajoni, D. Gerace, M. Galli, J. Bloch, R. Braive et al.
Experimental evidence of strong coupling between excitons confined in a quantum well and the photonic modes of a two-dimensional dielectric lattice is reported. Both resonant scattering and photoluminescence spectra at low temperature show the anticrossing of the polariton branches, fingerprint of s ... [Phys. Rev. B 80, 201308 (2009)] published Mon Nov 16, 2009.

Calculated properties of fully hydrogenated single layers of BN, BCN, and graphene: Graphane and its BN-containing analogues

Frank W. Averill, James R. Morris, and Valentino R. Cooper
Carbon is an attractive material for hydrogen adsorption due to its light weight, variety of structures, and ability to both physisorb and chemisorb hydrogen. Recently, fully hydrogenated graphene layers (graphane) have been predicted to exist [J. O. Sofo et al., Phys. Rev. B 75, 15340 (2007)], and ... [Phys. Rev. B 80, 195411 (2009)] published Mon Nov 16, 2009.

Hydrogen diffusion in GaAsN

R. Trotta, D. Giubertoni, A. Polimeni, M. Bersani, M. Capizzi et al.
Hydrogen (or deuterium) incorporation in dilute nitride semiconductors modifies dramatically the electronic and structural properties of the crystal through the creation of nitrogen-hydrogen complexes. In this work, we investigate how the formation and dissociation of such complexes rule the diffusi ... [Phys. Rev. B 80, 195206 (2009)] published Mon Nov 16, 2009.

Ferroelectric order stability in the BiPbFeO solid solution

J. Chaigneau, R. Haumont, and J. M. Kiat
Ferroelectric properties of BiPbFeO, through a structural approach, by structural Rietveld refinement and x-ray diffraction versus temperature have been carried out. This study allows us to draw a phase diagram for the system BiPbFeO. Although lead atom gets a lone pair and is commonly understood as ... [Phys. Rev. B 80, 184107 (2009)] published Mon Nov 16, 2009.

Differences in the high-energy kink between hole- and electron-doped high-T superconductors

M. Ikeda, T. Yoshida, A. Fujimori, M. Kubota, K. Ono et al.
We have performed an angle-resolved photoemission spectroscopy (ARPES) study of NdCeCuO (NCCO) in order to elucidate the origin of the high-energy kink (HEK) observed in the high-T superconductors (HTSCs). The energy scale of the HEK in NCCO is large compared with that in hole-doped HTSCs, consisten ... [Phys. Rev. B 80, 184506 (2009)] published Mon Nov 16, 2009.

Transverse instabilities of multiple vortex chains in magnetically coupled NbSe/permalloy superconductor/ferromagnet bilayers

G. Karapetrov, M. V. Milosevic, M. Iavarone, J. Fedor, A. Belkin et al.
Using scanning tunneling microscopy and Ginzburg-Landau simulations, we explore vortex configurations in magnetically coupled NbSe/permalloy superconductor/ferromagnet bilayer. The permalloy film with stripe domain structure induces periodic local magnetic induction in the superconductor, creating a ... [Phys. Rev. B 80, 180506 (2009)] published Mon Nov 16, 2009.

Fast-ion conduction and flexibility and rigidity of solid electrolyte glasses

M. Micoulaut, M. Malki, D. I. Novita, and P. Boolchand
Electrical conductivity of dry, slow cooled (AgPO)(AgI) glasses is examined as a function of temperature, frequency, and glass composition. From these data compositional trends in activation energy for conductivity E(x), Coulomb energy E(x) for Ag ion creation, Kohlrausch stretched exponent beta(x), ... [Phys. Rev. B 80, 184205 (2009)] published Mon Nov 16, 2009.

Antiferromagnetic to valence-bond-solid transitions in two-dimensional SU(N) Heisenberg models with multispin interactions

Jie Lou, Anders W. Sandvik, and Naoki Kawashima
We study two-dimensional Heisenberg antiferromagnets with additional multispin interactions which can drive the system into a valence-bond-solid state. For standard SU(2) spins, we consider both four- and six-spin interactions. We find continuous quantum phase transitions with the same critical expo ... [Phys. Rev. B 80, 180414 (2009)] published Mon Nov 16, 2009.

Spontaneous antiferromagnetic long-range order in the two-dimensional hybrid model of localized Ising spins and itinerant electrons

Jozef StreCka, Akinori Tanaka, Lucia Canova, and Taras Verkholyak
The generalized decoration-iteration transformation is adopted to treat exactly a hybrid model of doubly decorated two-dimensional lattices, which have localized Ising spins at their nodal lattice sites and itinerant electrons delocalized over pairs of decorating sites. Under the assumption of a hal ... [Phys. Rev. B 80, 174410 (2009)] published Mon Nov 16, 2009.

Measurement of spin memory lengths in PdNi and PdFe ferromagnetic alloys

H. Z. Arham, Trupti S. Khaire, R. Loloee, W. P. Pratt, Jr., and Norman O. Birge
Weakly ferromagnetic alloys are being used by several groups in the study of superconducting/ferromagnetic hybrid systems. Because spin-flip and spin-orbit scattering in such alloys disrupt the penetration of pair correlations into the ferromagnetic material, it is desirable to have a direct measure ... [Phys. Rev. B 80, 174515 (2009)] published Mon Nov 16, 2009.

Observation of a coherent optical phonon in the iron pnictide superconductor Ba(FeCo)As (x=0.06 and 0.08)

B. Mansart, D. Boschetto, A. Savoia, F. Rullier-Albenque, A. Forget et al.
We report the observation of a coherent lattice oscillation in a pnictide superconductor. A coherent fully symmetric optical phonon was detected in Ba(FeCo)As (x=0.06 and x=0.08) using time-resolved pump-probe reflectivity with 40 fs time resolution. The analysis of the phonon parameters for various ... [Phys. Rev. B 80, 172504 (2009)] published Mon Nov 16, 2009.

Electrical resistivity and magnetoresistance of single-crystal TbSiGe

M. Zou, V. K. Pecharsky, K. A. Gschneidner, Jr., Ya. Mudryk, D. L. Schlagel et al.
A positive colossal magnetoresistance (CMR) of 160% has been observed in TbSiGe with the magnetic field applied parallel to the a axis. When the magnetic field is applied parallel to the b and c axes, the magnetoresistance (MR) is less than 8% and 5%, respectively. The CMR effect originates from int ... [Phys. Rev. B 80, 174411 (2009)] published Mon Nov 16, 2009.

Zero-point divacancy concentration in the shadow wave function model for solid He

R. Pessoa, M. de Koning, and S. A. Vitiello
We address the issue of interaction between zero-point vacancies in solid He as described within the shadow wave function model. Applying the reversible-work method and taking into account finite-size effects, we obtain a zero-point monovacancy concentration of (2.030.02) x 10, which is slightly hig ... [Phys. Rev. B 80, 172302 (2009)] published Mon Nov 16, 2009.

The Kovacs effect: a master equation analysis. (arXiv:0911.4015v1 [cond-mat.stat-mech])

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Elastic properties of FeSi. (arXiv:0911.4016v1 [cond-mat.str-el])

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Dirac electrons in a Kronig-Penney potential: dispersion relation and transmission periodic in the strength of the barriers. (arXiv:0911.4017v1 [cond-mat.mes-hall])

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Graphene based quantum dots. (arXiv:0911.4024v1 [cond-mat.mtrl-sci])

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Solution of the Bogoliubov-de Gennes equations at zero temperature throughout the BCS-BEC crossover: Josephson and related effects. (arXiv:0911.4026v1 [cond-mat.quant-gas])

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Correlation function for the one-dimensional extended Hubbard model at quarter filling. (arXiv:0911.4028v1 [cond-mat.str-el])

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Superparamagnetic nanoparticle ensembles. (arXiv:0911.4031v1 [cond-mat.mes-hall])

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Evolutionary dynamics from a variational principle. (arXiv:0911.4032v1 [q-bio.PE])

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Influence of uniaxial tensile stress on the mechanical and piezoelectric properties of short-period ferroelectric superlattice. (arXiv:0911.4035v1 [cond-mat.mes-hall])

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Nonequilibrium Stationary States and Phase Transitions in Directed Ising Models. (arXiv:0911.4011v1 [cond-mat.stat-mech])

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Random Diffusion Model with Structure Corrections. (arXiv:0911.3917v1 [cond-mat.soft])

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Unconventional superconductivity on a topological insulator. (arXiv:0911.3918v1 [cond-mat.supr-con])

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Nonequilibrium fluctuation theorems in the presence of a time-reversal symmetry-breaking field and nonconservative forces. (arXiv:0911.3929v1 [cond-mat.stat-mech])

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Comment on ``Time-dependent current-density functional theory for generalized open quantum systems" by J. Yuen-Zhou, C. Rodriiguez-Rosario and A. Aspuru-Guzik. (arXiv:0911.3932v1 [cond-mat.mes-hall])

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Temperature dependence of the nitrogen-vacancy magnetic resonance in diamond. (arXiv:0911.3938v1 [cond-mat.mes-hall])

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Transport Currents and Persistent Currents in Solids: Orbital Magnetism and Hall Effect of Dirac Electrons. (arXiv:0911.3956v1 [cond-mat.mtrl-sci])

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Long-period fiber grating as wavelength selective element in double-clad Yb-doped fiber-ring lasers. (arXiv:0911.3958v1 [physics.optics])

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Design and fabrication of an intrinsically gain flattened Erbium doped fiber amplifier. (arXiv:0911.3960v1 [physics.optics])

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The Physical Origins of Entropy Production, Free Energy Dissipation and their Mathematical Representations. (arXiv:0911.3984v2 [cond-mat.stat-mech])

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Cluster aggregation model for discontinuous percolation transition. (arXiv:0911.4001v1 [cond-mat.stat-mech])

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Splitting dynamics of giant vortices in dilute Bose-Einstein condensates. (arXiv:0911.4042v1 [cond-mat.quant-gas])

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XRD and micro-Raman study of structural transformations in (B2O3)_{1-x}(H2O)_x glasses and liquids. (arXiv:0911.4049v1 [cond-mat.dis-nn])

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Spin Transfer Dynamics in Spin Valves with Out-of-plane Magnetized CoNi Free Layers. (arXiv:0911.4077v1 [cond-mat.mes-hall])

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Explosive Percolation in the Human Protein Homology Network. (arXiv:0911.4082v1 [q-bio.MN])

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Electron spin relaxation in bulk GaAs for doping densities close to the metal-to-insulator transition. (arXiv:0911.4084v1 [cond-mat.mes-hall])

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Effective interactions and melting of a one dimensional defect lattice within a two-dimensional confined colloidal solid. (arXiv:0911.4087v1 [cond-mat.soft])

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HTSC-glue in doped copper oxides and iron pnictides: mobile CT-excitons within in-plane Ginzburg HTSC-sandwich. (arXiv:0911.4089v1 [cond-mat.supr-con])

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Fractional Quantum Hall Effect and Featureless Mott Insulators. (arXiv:0911.4094v1 [cond-mat.str-el])

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Dynamic response of a mesoscopic capacitor in the presence of strong electron interactions. (arXiv:0911.4101v1 [cond-mat.mes-hall])

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Scaling of the superfluid density in severely underdoped YBa2Cu3O6+y. (arXiv:0911.4102v1 [cond-mat.supr-con])

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The Neel temperature and sublattice magnetization for the stacked triangular-lattice antiferromagnet with a weak interlayer coupling. (arXiv:0911.4071v1 [cond-mat.stat-mech])

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Imaging of inelastic waves in IETS maps. (arXiv:0911.4053v1 [cond-mat.mes-hall])

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Effect of a Magnetic Field on the Dipole Echo in Glasses with Nuclear Quadrupole Moments. (arXiv:0911.4056v1 [cond-mat.dis-nn])

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Phonon dispersion and anomalies in one-layer high-temperature superconductors. (arXiv:0911.4057v1 [cond-mat.supr-con])

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Correlations between vibrational entropy and dynamics in super-cooled liquids. (arXiv:0911.4059v2 [cond-mat.stat-mech])

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Nonequilibrium steady states of driven magnetic flux lines in disordered type-II superconductors. (arXiv:0911.4066v1 [cond-mat.supr-con])

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Mottness collapse and statistical quantum criticality. (arXiv:0911.4070v1 [cond-mat.str-el])

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Surface roughness effect on ultracold neutron interaction with a wall and implications for computer simulations. (arXiv:0911.4115v1 [cond-mat.other])

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Charge order, dielectric response and local structure of La5/3Sr1/3NiO4 system. (arXiv:0901.3373v2 [cond-mat.str-el] UPDATED)

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Mapping all classical spin models to a lattice gauge theory. (arXiv:0911.2096v2 [quant-ph] UPDATED)

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Scanning gate microscopy of current-annealed single layer graphene. (arXiv:0911.3832v2 [cond-mat.mes-hall] UPDATED)

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Electron transport and quantum-dot energy levels in Z-shaped graphene nanoconstriction with zigzag edges. (arXiv:0911.1550v2 [cond-mat.mes-hall] UPDATED)

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Phonon anomaly in BaFe2As2. (arXiv:0910.1565v2 [cond-mat.str-el] UPDATED)

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A convective instability mechanism for quasistatic crack branching in a hydrogel. (arXiv:0903.4829v2 [cond-mat.soft] UPDATED)

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Sudden change of the thermal contact between two quantum systems. (arXiv:0905.1079v2 [cond-mat.stat-mech] UPDATED)

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Coulomb explosion sputtering of selectively oxidized Si. (arXiv:0905.4343v2 [cond-mat.mtrl-sci] UPDATED)

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Topological Peierls Transitions in M\"{o}bius Molecular Devices. (arXiv:0906.2593v3 [cond-mat.mes-hall] UPDATED)

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Core sizes and dynamic instabilities of giant vortices in dilute Bose-Einstein condensates. (arXiv:0907.3077v2 [cond-mat.quant-gas] UPDATED)

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Spin susceptibility of degenerate quark matter. (arXiv:0908.1887v2 [hep-ph] UPDATED)

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An ansatz for the exclusion statistics parameters in macroscopic physical systems described by fractional exclusion statistics. (arXiv:0909.0030v2 [cond-mat.stat-mech] UPDATED)

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Scaling, phase transition and genus distribution functions in matrix models of RNA with linear external interactions. (arXiv:0911.3710v1 [q-bio.BM] CROSS LISTED)

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Reduced density matrix of permutational invariant many-body systems. (arXiv:0911.3777v1 [quant-ph] CROSS LISTED)

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Google matrix and Ulam networks of intermittency maps. (arXiv:0911.3823v1 [cs.IR] CROSS LISTED)

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Magnetic Anistropy due to the Casimir Effect. (arXiv:0911.3854v1 [quant-ph] CROSS LISTED)

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