Critical transport current density in sintered oxide superconductors with high critical temperature

Teruo Matsushita, Baorong Ni, Yasuo Sudo, Masataka Iwakuma, Kazuo Funaki, Masakatsu Takeo, Kaoru Yamafuji

研究成果: ジャーナルへの寄稿記事

23 引用 (Scopus)

抄録

Percolative critical transport current density in sintered Y–Ba–Cu–O superconductors is estimated by taking into account the effect of anisotropies in the upper critical field and the pinning structure. This value is much smaller than the estimate for the optimized situation, where misorientation between the magnetic field and anisotropic pinning structures does not occurs. As the volume fraction of the superconducting region becomes small, the critical transport current density decreases drastically due to a decrease in the percolation probability of the current. To improve the transport property, it is necessary to align the orientation of grains or to introduce isotropic pinning centers, in addition to increasing the superconducting volume fraction.

元の言語英語
ページ(範囲)929-936
ページ数8
ジャーナルJapanese Journal of Applied Physics
27
発行部数6R
DOI
出版物ステータス出版済み - 6 1988

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Oxide superconductors
Volume fraction
critical temperature
Current density
current density
oxides
Transport properties
Superconducting materials
Anisotropy
Magnetic fields
misalignment
Temperature
transport properties
anisotropy
estimates
magnetic fields

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

これを引用

Critical transport current density in sintered oxide superconductors with high critical temperature. / Matsushita, Teruo; Ni, Baorong; Sudo, Yasuo; Iwakuma, Masataka; Funaki, Kazuo; Takeo, Masakatsu; Yamafuji, Kaoru.

:: Japanese Journal of Applied Physics, 巻 27, 番号 6R, 06.1988, p. 929-936.

研究成果: ジャーナルへの寄稿記事

Matsushita, Teruo ; Ni, Baorong ; Sudo, Yasuo ; Iwakuma, Masataka ; Funaki, Kazuo ; Takeo, Masakatsu ; Yamafuji, Kaoru. / Critical transport current density in sintered oxide superconductors with high critical temperature. :: Japanese Journal of Applied Physics. 1988 ; 巻 27, 番号 6R. pp. 929-936.
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AU - Matsushita, Teruo

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AU - Takeo, Masakatsu

AU - Yamafuji, Kaoru

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