Crystal orientation in Bi-based superconducting glass-ceramics prepared in high magnetic field

N. Toyohara, Y. Benino, T. Fujiwara, S. Tanaka, K. Uematsu, T. Komatsu

研究成果: Article査読

10 被引用数 (Scopus)

抄録

A high magnetic field of 10 T was applied to the crystallization process of Bi2Sr2CaCu2Ox superconducting precursor glasses, and the effect of high magnetic field on crystal grain orientations and superconducting properties were examined from electrical resistivity measurements, X-ray diffraction analyses and scanning electron microscope observations. The glass-ceramics prepared in a high magnetic field show better superconducting properties (higher critical temperature, larger critical current density, and smaller normal-state resistivity) compared with the samples crystallized in a normal heat-treatment with no magnetic field. It was found that Bi2212 crystal grains with a plate-like shape tend to stack to the direction of the magnetic field, i.e., the orientation of the c-axis of the Bi2212 phase to the direction of the magnetic field.

本文言語English
ページ(範囲)88-94
ページ数7
ジャーナルPhysica C: Superconductivity and its applications
420
3-4
DOI
出版ステータスPublished - 2005 4月 1
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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