Enhanced Jc properties in superconducting NbTi composites by introducing Nb artificial pins with a layered structure

Kaname Matsumoto, Hirokazu Takewaki, Yasuzo Tanaka, Osuke Miura, Kaoru Yamafuji, Kazuo Funaki, Masataka Iwakuma, Teruo Matsushita

研究成果: Contribution to journalArticle査読

38 被引用数 (Scopus)

抄録

High critical current densities (4250 A/mm2 at 5 T, 4.2 K, and 15 000 A/mm2 at 2 T, 4.2 K) were achieved by using an artificially designed pin structure composed of randomly oriented clusters of Nb/NbTi multilayer in a NbTi composite superconductor (with a round cross section). The maximum values were obtained when the Nb layer thickness was designed to be approximately twice the coherence length in NbTi, where the layer thickness is five to ten times thicker than that of the optimized α-Ti ribbon thickness in a conventional NbTi system.

本文言語英語
ページ(範囲)115-117
ページ数3
ジャーナルApplied Physics Letters
64
1
DOI
出版ステータス出版済み - 12 1 1994

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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