Number 38 (Story #3), June 21, 1991 by Phillip F. Schewe and Ben Stein A NEW COPPER-OXIDE SUPERCONDUCTOR with an important structural difference from all other high-temperature superconductors has been discovered. Previous materials had non-superconducting oxide layers accompanying superconducting copper-oxide planes. Scientists at the University of Texas reported the discovery of a Sr-Nd-Cu-O compound lacking non-superconducting oxide layers. The material, with a transition temperature of 40 K, is an electron-doped superconductor. (Nature, 13 June 1991.)