doi:10.1016/j.physc.2006.03.101

Pinning characteristics at high fields in superconducting Bi-2223 single crystals 利用統計を見る

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アイテムタイプ	学術雑誌論文 = Journal Article
言語	英語
キーワード	Bi-2223 single crystal, Columnar defects, Critical current density, Irreversibility field, Dimensionality of superconductivity
著者	Kohno I. Kiuchi Masaru Otabe Edmund Soji Matsushita Teruo Nomura T. Motohashi T. Karppinen M. Yamauchi H. Okayasu S.
著者別名	木内勝小田部荘司松下照男
著者所属	Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology, 680-4 Kawazu, Iizuka 820-8502, Japan Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8503, Japan Japan Atomic Energy Agency, 2-4 Shirane, Tokai-mura, Naka-gun, Ibaraki, 319-1195, Japan
抄録	Pinning properties such as the critical current density and the irreversibility field of superconducting (Bi,Pb)-2223 single crystals with different O2 annealing conditions were investigated before and after a heavy ion irradiation which nucleated columnar defects parallel to the c-axis. The critical current density was enhanced by a factor of 3 to 4 after the irradiation due to the strong pinning effect by the columnar defects. In addition, the irreversibility field was also improved, and the improvement becomes larger at higher temperatures. The enhancement of the pinning properties was larger in O2 annealed specimen, suggesting an improvement of the dimensionality of the superconductivity. The experimental results were theoretically analyzed using the flux creep-flow model. It was found that the theoretical prediction can explain the experimental results of the critical current density and the irreversibility field.
雑誌名	Physica C: Superconductivity
巻	445-448
ページ	137 - 140
発行年	2006-10-01
出版者	Elsevier
ISSN	0921-4534
DOI	10.1016/j.physc.2006.03.101
権利	Copyright © 2006 Elsevier B.V.
情報源	http://www.sciencedirect.com/science/journal/09214534
日本十進分類法	4
版	author
査読の有無	yes
資料タイプ	Journal Article

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Pinning characteristics at high fields in superconducting Bi-2223 single crystals 利用統計を見る

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Kyushu Institute of Technology Academic Repository

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Pinning characteristics at high fields in superconducting Bi-2223 single crystals 利用統計を見る

Kyutacar　九州工業大学学術機関リポジトリ