Effects of artificial pinning centers on vortex pinning in high-temperature superconducting films

K. Matsumoto, T. Horide, P. Mele, Y. Yoshida, M. Mukaida, A. Ichinose, S. Horii

Research output: Contribution to journalConference article

19 Citations (Scopus)


One-dimensional artificial pinning centers (APCs) were introduced perpendicular to the surface of the c-axis oriented YBa2Cu 3O7-δ (YBCO) films by using Y2O 3 nano-islands which were distributed on the substrates. In-field Jc of the films was remarkably enhanced by this method and reached to 0.12 MA/cm2 (77 K, B∥c, 5 T), which was 2-2.5 times higher than that of a pure YBCO film. The present films had a large Jc peak when the field was applied close to the c-axis. The results indicate that the strong APCs were introduced into the YBCO films. The vortex pinning by the present APCs is discussed based on the accommodation angle of the vortices.

Original languageEnglish
Pages (from-to)1091-1095
Number of pages5
JournalPhysica C: Superconductivity and its applications
Issue numberII
Publication statusPublished - 2005 Oct 7
EventProceedings of the 17th Internatioanl Symposium on Superconductivity (ISS 2004) Advances in Superconductivity -
Duration: 2004 Nov 232004 Nov 25



  • Artificial pinning center
  • J
  • Vortex pinning
  • YBCO

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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