Tilt angle dependences of vortex structure and critical current density at low-angle grain boundaries in Y Ba2 Cu3 O7-x films

Tomoya Horide, Kaname Matsumoto, Yutaka Yoshida, Masashi Mukaida, Ataru Ichinose, Shigeru Horii

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    17 Citations (Scopus)

    Abstract

    A tilt angle dependence of vortex structure was studied at low-angle grain boundaries (LAGBs) in Y Ba2 Cu3 O7-x films. The 2°tilt LAGB did not degrade Jc of the film in a self-field, demonstrating the existence of Abrikosov vortices at the 2° LAGB. The magnetic field dependence of the flux flow resistance indicated the existence of Abrikosov Josephson vortices at the 5° tilt LAGB. At the 10° tilt LAGB, a Josephson junction behavior was observed in a self-field, indicating the existence of Josephson vortices. The influence of the LAGBs on critical current density was understood based on these vortices.

    Original languageEnglish
    Article number132502
    JournalPhysical Review B - Condensed Matter and Materials Physics
    Volume77
    Issue number13
    DOIs
    Publication statusPublished - Apr 7 2008

    All Science Journal Classification (ASJC) codes

    • Condensed Matter Physics

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