Preparation of a Bi-Sr-Ca-Cu-O High-T_c Superconductor by the Reaction of a Cu-Free Precursor with Cu Plate

1 June 1989

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

Vol. 28 (6A) , L984
https://doi.org/10.1143/jjap.28.l984

Abstract

A Bi-Sr-Ca-Cu-O high-T _c superconducting layer was formed on a metallic copper substrate by the reaction between calcined Bi₂SrCaO_p powder or thick film and surface-oxidized copper plate, The reaction proceeded at an oxidized copper surface to form a triple layer structure composed of Bi₂Sr₂CaCu₂O_x, CuO_q, and Cu. The use of Bi in excess of the high-T _c phase stoichiometry (Bi/Sr/Ca=1/1/1) was essential for the formation of the superconducting Bi-Sr-Ca-Cu-O layer.

Keywords

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Preparation of a Bi-Sr-Ca-Cu-O High-Tc Superconductor by the Reaction of a Cu-Free Precursor with Cu Plate

Abstract

Keywords

Preparation of a Bi-Sr-Ca-Cu-O High-T_c Superconductor by the Reaction of a Cu-Free Precursor with Cu Plate