Temperature dependence of flux creep in high-Tc superconductors

Takanori Fujiyoshi, Kiyoshi Toko, Teruo Matsushita, Kaoru Yamafuji

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)


The normalized decay rate R of magnetization due to thermally activated flux creep is typically given by R≃kBT/Uc, where kB is the Boltzmann constant, T is the absolute temperature and Uc is the effective pinning potential. Some observed data for high-Tc superconductors show that R increases with increasing T, while in other studies, R takes a peak at a certain temperature Tm below the critical temperature Tc, where Tm decreases with increasing external magnetic field. These temperature dependences of R are explained systematically on the basis of a recent theory of flux creep developed by the authors.

ジャーナルJapanese Journal of Applied Physics
11 A
出版ステータス出版済み - 11 1989

All Science Journal Classification (ASJC) codes

  • 工学(全般)
  • 物理学および天文学(全般)


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