Numerical study of random superconductors

N. Akino, C. Giardinà, J.M. Kosterlitz, N.V. Priezjev

    Research output: Contribution to journalArticleAcademicpeer-review

    Abstract

    The XY model with quenched random disorder is studied numerically at T=0 by a defect scaling method as a model of a disordered superconductor. In 3D we find that, in the absence of screening, a vortex glass phase exists at low T for large disorder in 3D with stiffness exponent ¿˜+0.31 and with finite screening and in 2D this phase does not exist. For weak disorder, a superconducting phase exists which we identify as a Bragg glass. In the presence of screened vortex–vortex interactions, the vortex glass does not exist but the Bragg glass does.
    Original languageEnglish
    Pages (from-to)484-486
    JournalPhysica C : Superconductivity
    Volume408-410
    DOIs
    Publication statusPublished - 2004

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