Controlled levitation of bulk superconductors

Ken Nagashima, Yukikazu Iwasa, Koichiro Sawa, Masato Murakami

研究成果: Article査読

20 被引用数 (Scopus)

抄録

Levitation of bulk Y-Ba-Cu-O superconductors could successfully be controlled using a Bi-Sr-Ca-Cu-O superconducting electromagnet. It was found that stable levitation without tilting was obtained only when the sample trapped a certain amount of field, the minimum of which depended on the external field and the sample dimensions. We also employed the novel analysis method for levitation based on the total energy balance, which is much simpler than the force method and could be applied to the understanding of general levitation behavior. Numerical analyzes thus developed suggested that stable levitation of superconductors with large dimensions can only be achieved when the induced currents can flow with three dimensional freedom.

本文言語English
ページ(範囲)1642-1648
ページ数7
ジャーナルIEEE Transactions on Applied Superconductivity
10
3
DOI
出版ステータスPublished - 2000 9
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
  • 電子工学および電気工学

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