Superconductivity in a Ln-Pb-Sr-Ca-Cu-O System

1 January 1989

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

Vol. 28 (1A) , L60-62
https://doi.org/10.1143/jjap.28.l60

Abstract

The superconductivity and crystal structure of a Ln-Pb-Sr-Ca-Cu-O system, where Ln=Y or lanthanide, have been studied. The maximum onset temperature and zero resistance obtained for a nominal composition of YbPbSr₂Ca₂Cu₃O_x were 78 K and 64 K, respectively. This ceramic is composed of a new phase which has a tetragonal symmetry with a=3.81 Å and c=15.7 Å, and a second phase, Yb₂SrO₄.

Keywords

X RAY DIFFRACTION
CRYSTAL STRUCTURE
SUPERCONDUCTOR
HIGH TEMPERATURE SUPERCONDUCTOR
TRANSITION TEMPERATURE
ELECTRICAL RESISTANCE

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