Critical current density in superconducting nb3ge and nbn films at fields up to 30 t

Mitsumasa Suzuki, Takeshi Anayama, Kazuo Watanabe, Naoki Toyota, Norio Kobayashi, Koshichi Noto, Yoshio Muto

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The superconducting critical current densities Jc of Nb3Ge and NbN films prepared by sputtering have been studied in fields up to 30 T for the perpendicular field direction H to the film surface and up to 23 T for the parallel field direction H//. The Nb3Ge film exhibits Jc exceeding 1 X 105(1 X 104) A/cm2 in fields below 21(30) T for H and below 23 T for H//. The Jc o f the NbN film for H is higher than 1 X 105 A/cm2 in fields below 21 T, while that for H// is much reduced. Their pinning properties and upper critical fields Hc2 are presented.

Original languageEnglish
Pages (from-to)L767-L769
JournalJapanese journal of applied physics
Issue number9
Publication statusPublished - 1985 Sep

ASJC Scopus subject areas

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

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