Effect of Vacuum Annealing on the Superconducting Transition Temperature of La-Sr-Cu-O System

1 April 1987

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 26 (4A) , L493-494
https://doi.org/10.1143/jjap.26.l493

Abstract

Effect of vacuum annealing on the superconducting transition temperature T _c of the ceramic superconductor La-Sr-Cu-O system with K₂NiF₄ type structure has been studied. For a constant annealing time, the resistivity-increase and the T _c-decrease become larger for higher annealing temperatures. This may be qualitatively understood as the result of introduction of oxygen vacancies at their sites in the basal plane of CuO₆ octahedra which are parallel to the (001) plane of the tetragonal cell.

Keywords

SUPERCONDUCTORS

This publication has 2 references indexed in Scilit:

High T_c Superconductors of the Perovskite Structure Oxides
Japanese Journal of Applied Physics, 1987
Possible highT c superconductivity in the Ba?La?Cu?O system
Zeitschrift für Physik B Condensed Matter, 1986