Critical current density of Y-Ba-Cu-Sn-O superconductors

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Published under licence by IOP Publishing Ltd
, , Citation Feng Yong et al 1993 Acta Phys. Sin. (Overseas Edn) 2 857 DOI 10.1088/1004-423X/2/11/008

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1 Northwest Institute for Nonferrous Metal Research, P.O.Box 71, Baoji 721014, China

2 Structure Research Laboratory, University of Science and Technology of China, Hefei 230026, China

3 Shaanxi Normal University, Xian 710062, China

4 Nanjing University, Nanjing 210008, China

Dates

  1. Received 3 December 1992
1004-423X/2/11/857

Abstract

The magnetic curves of bulk Y-Ba-Cu-Sn-O have been studied in the temperature range 60-77 K and in fields up to 2.4 T. The results indicate that Jc varies with the magnetic field as a power law and decreases exponentially with temperature. The critical current density Jc can be improved by the substitution of Sn for Cu.

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