High field pinning-effects in YBa2Cu3O7/La0.7Sr0.3MnO3 nanocrystalline bilayers

J. G. Lin, S. L. Cheng

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

The pinning behavior in YBa2Cu3O7/La0.7Sr0.3MnO3 (YBCO/LSMO) nanocrystalline bilayers grown on (1 0 0) LaAlO3 substrate has been investigated. It is found that by increasing the thickness of LSMO(t) from 0 to 40 nm, the critical current density Jc of YBCO is suppressed. However, in the bilayer with t = 30 nm, an enhancement of Jc is observed at high field, which may be caused by the magnetic pinning of LSMO layer.

Original languageEnglish
Pages (from-to)187-189
Number of pages3
JournalPhysica C: Superconductivity and its applications
Volume437-438
Issue numberSPEC. ISS.
DOIs
StatePublished - 15 May 2006

Keywords

  • Critical current
  • Ferromagnetic/superconducting bilayer
  • Pinning effect

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