Structure-Property Relations in High Tc Oxide Superconductors: Search for Systematics

and

Copyright (c) 1987 The Japan Society of Applied Physics
, , Citation C.N.R. Rao and P. Ganguly 1987 Jpn. J. Appl. Phys. 26 L882 DOI 10.1143/JJAP.26.L882

1347-4065/26/5A/L882

Abstract

Some interesting aspects of the structure and stoichiometry of YBa2Cu3O7+δ and other high-Tc oxide superconductors are discussed. The nature of Cu and the importance of the Cu3+/Cu2+ ratio in these copper oxides are pointed out. Marginal metallicity of the non-superconducting phase in these oxides as an important factor in the mechanism is indicated. Effect of Y substitution in YBa2Cu3O7+δ by other rare earths is commented upon.

Export citation and abstract BibTeX RIS

10.1143/JJAP.26.L882