Crossover from intrinsic to extrinsic pinning for YBa2Cu3O7 films

Satoshi Awaji, Kazuo Watanabe, Norio Kobayashi

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)

Abstract

Critical current density properties for YBa2Cu3O7 films which have different pinning strength were measured as a function of magnetic field, temperature or magnetic field angle. We found that a kink anomaly appeared in the temperature dependence of critical current densities Jc and that the temperature at which the anomaly appeared depended on the extrinsic pinning strength. The magnetic field and angular dependences of Jc indicate that the anomaly is due to the crossover from the intrinsic to the extrinsic pinning. Using a competition model of the intrinsic and extrinsic pinning, a kink anomaly is explained successfully.

Original languageEnglish
Pages (from-to)569-577
Number of pages9
JournalCryogenics
Volume39
Issue number7
DOIs
Publication statusPublished - 1999 Jul

ASJC Scopus subject areas

  • Materials Science(all)
  • Physics and Astronomy(all)

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