Title: Liquid nitrogen temp. zone superconductive film and the preparation method thereof
Application Number: 87102739 Application Date: 1987.04.15
Publication Number: 1032087 Publication Date: 1989.03.29
Approval Pub. Date: Granted Pub. Date: 1990.03.07
International Classifi-cation: C22C29/12,H01B12/06
Applicant(s) Name: Physics Inst. Chinese Academy of Sciences Address:
Inventor(s) Name: Wang Huisheng
Attorney & Agent: ZHANG AILIAN
Abstract:
     The liquid nitrogen temperature zone superconductive film preparation process of the said invention is to make compound target in accordance with the system AxB5-xCu5O5(3-y) or the system AxB1-xCuO3-y, where A=Ca, Sr, Ba; B=Sc, Y, La; Y=0.5--1 and X=0.5-0.6 for the first system and X=0.3-0.7 for the later system. The processes of dc (or radio frequency) magnetic control sputtering and heat treatment are used. The process is simple and may be repeated. The stability is fine. The thickness of the film prepared is 0.5--1 micro metre. The superconduction presents at the liquid nitrogen temperature zone. The superconductivity of the film may be measured by resistance method or inductive method.
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