Direct observation of flux-creep in high-Tc superconductors using the high-resolution Faraday effect

M. R. Koblischka, Th Schuster, B. Ludescher, H. Kronmüller

研究成果: Article査読

19 被引用数 (Scopus)

抄録

Using the capability of the high-resolution Faraday effect (HRF) to allow dynamic observations of the Shubnikov phase, we directly observed effects of flux-creep in high -Tc superconductors. In this paper we show measurements on (RE) Ba2Cu3O7-δ with RE=Y, Dy, Gd and on Bi2Sr2CaCu2O8-δ single crystals and also on YBaCuO thin films and sintered materials. Furthermore, this technique enables us also to measure the flux creep locally. From the obtained photographs we determine the time dependence of the total flux in the samples. Using these data and the model of Hagen et al. the effective activation energies have been determined for these materials.

本文言語English
ページ(範囲)557-562
ページ数6
ジャーナルPhysica C: Superconductivity and its applications
190
4
DOI
出版ステータスPublished - 1992 1月 15
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • エネルギー工学および電力技術
  • 電子工学および電気工学

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