Production of a Long Superconducting NbN Wire by the Sputtering Method

Hiroaki Morita, Kazuo Watanabe, Koshichi Noto, Hiroyasu Fujimori

Research output: Contribution to journalArticlepeer-review


An attempt has been made to produce a long wire of superconducting NbN compound by a reactive sputtering technique using a cylindrical pure Nb target. Among various metal- and alloy-wire substrate materials examined, a tungsten wire showed the best properties. Jc of the specimen deposited on the W wire was improved by annealing at temperatures up to 1200K, and the best properties are Tc of 15.7K, Jc of 1.84×105A/cm2 at 10T and 1.15×103A/cm2 at 20T.

Original languageEnglish
Pages (from-to)953-954
Number of pages2
JournalJapanese journal of applied physics
Issue numberS3-2
Publication statusPublished - 1987 Jan
Externally publishedYes

ASJC Scopus subject areas

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


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