AC Susceptibility of a High-Temperature Superconductor Strip: Field-Dependent Power-Law Flux-Creep Model

Du Xing Chen, Shuo Li

    Research output: Contribution to journalArticleResearchpeer-review

    1 Citation (Scopus)

    Abstract

    © 2010-2012 IEEE. The field-amplitude-dependent ac susceptibility χ (Hm) and the voltage-current curve V(I) of rectangular samples cut from the same high-temperature superconductor strip are measured at 77 K. The high-Hm part of χ (Hm) and the high-I part of V(I) can be consistently well simulated by a flux-creep model of power-law dependence of the electric field on a Kim-type magnetic-field-dependent sheet current density. The low-Hm and low-I departure from our experiment results from edge damage due to cutting.
    Original languageEnglish
    Article number1102305
    JournalIEEE Magnetics Letters
    Volume9
    DOIs
    Publication statusPublished - 17 Feb 2018

    Keywords

    • Electromagnetics
    • Kim model
    • ac susceptibility
    • demagnetizing correction
    • power-law E(J) relation
    • superconductor strip

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