Scaling Law for AC Susceptibility of a Superconducting Strip with a Power-Law Dependence of Electric Field on a Magnetic-Field-Dependent Sheet Current Density

Du Xing Chen, Shuo Li, Chen Xi Jia, Yue Ming Sun, Jin Fang

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    2 Citations (Scopus)

    Abstract

    © 2016 IEEE. The perpendicular ac susceptibility Φ = Φ′- jΦ″ of a superconducting thin strip of width 2a obeying a powerlaw dependence of electric field on sheet current density E/Ec = (K/Kc)|K/Kc|n-1 with a Kim-model Kc(H) = K0[1 + p2K |H|/(K0/π)]-1 and average critical sheet current density Kc,av is calculated as a function of the field amplitude Hm and frequency ω. A scaling law is deduced which states that if ω and Hm are normalized as θ = μ0ωaKc,av/2Ec and hm = Hmπ/Kc,av, then for the hm at which Φ ″ takes its maximum, hm(Φ ″m, θ) = hm(Φ ″m, 1)θ1/(n-1)-β occurs with Φ ″m(θ) = Φ ″m(1)θα, positive numbers α and β being functions of n and pK only.
    Original languageEnglish
    Article number1304604
    JournalIEEE Magnetics Letters
    Volume7
    DOIs
    Publication statusPublished - 1 Jan 2016

    Keywords

    • ac susceptibility
    • Electromagnetics
    • Kim model
    • power-law E(J) relation
    • scaling law
    • superconducting strip

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