Imaging of magnetic flux distribution in vicinity of insulating particles in high-T c superconductor by electron holography

Zentaro Akase, Hiroto Kasai, Shuichi Mamishin, Daisuke Shindo, Mitsuru Morita, Akira Tonomura

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    4 Citations (Scopus)

    Abstract

    REBaCuO (RE: rare earth) bulk superconductors, whose microstructures can be controlled by quench and melt growth (QMG) processing, have a high critical current density J c, which makes them well suited for use in practical applications. Through a combination of electron holography and a focused ion-beam technique, we succeeded in visualizing a fluxon pinned by an insulating particle in a QMG bulk Y-Ba-Cu-O superconductor. We also clarified the magnetic flux distribution in the vicinity of the insulating particles at different temperatures in a uniform external magnetic field.

    Original languageEnglish
    Article number033912
    JournalJournal of Applied Physics
    Volume111
    Issue number3
    DOIs
    Publication statusPublished - 2012 Feb 1

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

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