Preparation of an Almost Single Phase Superconductor in the Nd-Ce-Sr-Cu-O System

1 January 1989

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

Vol. 28 (1A) , L49-51
https://doi.org/10.1143/jjap.28.l49

Abstract

A superconducting oxide with the composition (Nd_0.60Ce_0.175Sr_0.225)₂CuO_4-δ was obtained as an almost single phase. This superconducting phase has a tetragonal unit cell with lattice parameters a=3.8575 Å and c=12.507 Å. The crystal structure of this phase is different from both the Nd₂CuO₄ type structure and the K₂NiF₄ type structure. Magnetic susceptibility measurement shows that (Nd, Ce, Sr)₂CuO_4-δ is a bulk superconductor. The superconductivity of samples annealed at a high oxygen pressure was investigated. The onset critical temperature was insensitive to high oxygen pressure.

Keywords

This publication has 5 references indexed in Scilit:

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