Angular dependence of flux pinning in high-Tc superconducting films

H. E. Horng, H. H. Sung, B. C. Yao, H. C. Yang

    Research output: Contribution to journalArticle

    4 Citations (Scopus)

    Abstract

    We have investigated the angular dependence of the dissipative characteristics of YBa2>Cu3>O7-y(>YBCO) and >Bi2>Sr2>CaCu2>O8-y(>BSCCO) films by measuring the resistivity in a field. The dissipation can be described by the thermal activated flux creep model, >R=RO exp(-U(H,T,θ)/kBT). U depends on the magnetic field as well as the angle, θ, the magnetic field makes with the c-axis. We found that the activation energy of YBCO films decreases by a factor of 2 while that of BSCCO films decreases by a factor of about 10 in >H = 5.5>T and at >T/Tc = 0.93 as one varies θ from 90° to 0°, where θ is the angle between the c axis and the direction of the field.

    Original languageEnglish
    Pages (from-to)2221-2222
    Number of pages2
    JournalPhysica C: Superconductivity and its Applications
    Volume185-189
    Issue numberPART 4
    DOIs
    Publication statusPublished - 1991 Dec 1

    Fingerprint

    Flux pinning
    Superconducting films
    flux pinning
    superconducting films
    Magnetic fields
    magnetic fields
    Creep
    dissipation
    Activation energy
    Fluxes
    activation energy
    electrical resistivity

    ASJC Scopus subject areas

    • Condensed Matter Physics

    Cite this

    Angular dependence of flux pinning in high-Tc superconducting films. / Horng, H. E.; Sung, H. H.; Yao, B. C.; Yang, H. C.

    In: Physica C: Superconductivity and its Applications, Vol. 185-189, No. PART 4, 01.12.1991, p. 2221-2222.

    Research output: Contribution to journalArticle

    Horng, H. E. ; Sung, H. H. ; Yao, B. C. ; Yang, H. C. / Angular dependence of flux pinning in high-Tc superconducting films. In: Physica C: Superconductivity and its Applications. 1991 ; Vol. 185-189, No. PART 4. pp. 2221-2222.
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