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Journal of Superconductivity

, Volume 10, Issue 5, pp 537–540 | Cite as

Upper Critical Magnetic Field for a Modified Maltifiamental Nb3A1Wire

  • Dal Mao
  • K. Itoh
  • T. Kuroda
  • M. Yayama
  • H Wada
  • Y. Murakami
Article

Abstract

We measured the upper critical field Μ0Hc2 for a modified Nb3A.l sample above 10 K and evaluated the values using a different criterion. The values from theI c measurement, converting from the ac susceptibility and direct judging from the transition point on the magnetization curve, were close and larger than that extrapolated from the magnetization basedon the theory of Kramer and the critical state model.

Key words

Upper crotocal field Nb3Al Ic magnetization susceptibility 

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Copyright information

© Plenum Publishing Corporation 1997

Authors and Affiliations

  • Dal Mao
    • 1
  • K. Itoh
    • 2
  • T. Kuroda
    • 2
  • M. Yayama
    • 2
  • H Wada
    • 2
  • Y. Murakami
    • 3
  1. 1.Public Laboratory of the State Education Commission of P. R. China for High-Temperatuire Materials and High-Temperature TestsShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Tsukuba Magnet LaboratoryNational Research Institute for MetalsIbarakiJapan
  3. 3.Electronics Research LaboratoryKobe Steel Ltd.KobeJapan

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