STRUCTURAL INHOMOGENEITIES IN OXYGEN-DEFICIENT ERBA2CU3O6+X ASSOCIATED WITH THE TETRAGONAL-TO-ORTHORHOMBIC TRANSITION - EVIDENCE OF 1ST-ORDER BEHAVIOR
PHYSICAL REVIEW B 45:9 (1992) 4923-4949
STRUCTURE, DIMENSIONALITY AND SUPERCONDUCTIVITY IN OXIDES
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 204 (1992) 121-INOR
Defects, defect ordering, structural coherence and superconductivity in the 123 copper oxides
Physica C: Superconductivity and its applications 185-189:PART 1 (1991) 184-189
Abstract:
We discuss the influence of oxygen defects and defect ordering on superconductivity in 123 compounds. Because of the complexity of the high-temperature phase diagram, the synthesis history can significantly influence the properties. Room-temperature annealing experiments show that defect ordering on a short length scale can have a remarkable affect on superconductivity. We propose that structural coherence in the CuO2 planes, which is present only if there is orthorhombic symmetry on at least a short length scale, is a requirement for superconductivity in these compounds. © 1991.SYNTHESIS AND PROPERTIES OF NEW FAMILY OF SUPERCONDUCTING COPPER OXIDES BASED ON GAO LAYERS
SUPERCONDUCTIVITY AND ITS APPLICATIONS / 251 (1991) 319-326
SYNTHESIS AND TC IN SIMPLE SUPERCONDUCTING OXIDE SYSTEMS
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY 202 (1991) 9-PHYS