Critical current and activation energy in bi2sr2ca1cu2oxfilms after ion irradiation

Taiji Hoshiya, Saburo Takamura, Takeo Aruga, Mamoru Kobiyama, Sadahiko Miura, Yoshimi Kubo, Nobuaki Shohata

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


The temperature dependence of electric voltage in Bi2Sr2Ca1Cu2Oxfilms after He ion irradiation is measured for various electric currents and magnetic fields. From the thermally activated behavior of flux lines, the activation energy and the relation between the transition temperature and the Lorentz force are obtained. The pinning energy and the critical current density in Bi2Sr2Ca1Cu2Oxsingle-phase films decrease due to He ion irradiation.

Original languageEnglish
Pages (from-to)2026-2029
Number of pages4
JournalJapanese journal of applied physics
Issue number11
Publication statusPublished - 1990 Nov
Externally publishedYes


  • Activation energy
  • BiSrCaCuOfilm
  • Critical current density
  • He ion irradiation
  • Lorentz force

ASJC Scopus subject areas

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


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