Critical current density and flux pinning in Ho-doped melt-processed YBa2Cu3O y

Critical current density and flux pinning in Ho-doped melt-processed YBa2Cu3O y

We fabricated highly textured Y1−xHoxBa2Cu3Oy (x=0, 0.2, 0.4, and 0.6) bulk samples by a ‘‘powder melting process’’ method under identical conditions and investigated their critical current densities and flux pinning behavior with a superconducting quantum interference device magnetometer. The depen...

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Veröffentlicht in:Journal of applied physics 1996-07, Vol.80 (2), p.993-997
Hauptverfasser: Feng, Yong, Zhou, Lian, Du, Shejun, Wu, Xiaozu, Tholence, J. L., Vallier, J. C., Monceau, P., Yin, B., Li, Jinwei, Zhao, Zhongxian, Zhang, Yuheng
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Sprache:eng
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Zusammenfassung:We fabricated highly textured Y1−xHoxBa2Cu3Oy (x=0, 0.2, 0.4, and 0.6) bulk samples by a ‘‘powder melting process’’ method under identical conditions and investigated their critical current densities and flux pinning behavior with a superconducting quantum interference device magnetometer. The dependence of Jc on the magnetic field, estimated by the Bean model, is studied. The results indicate that Jc drops with the magnetic field according to a power law Jc∝H−n (n
ISSN:0021-8979
1089-7550
DOI:10.1063/1.362912