Angular dependence of magnetic relaxation and remanent magnetization on YBCO/PBCO super-lattice and YBCO thin film

J. M. Wu, H. E. Horng, H. C. Yang, L. M. Wang

    Research output: Contribution to journalArticle

    Abstract

    We measured the angular dependence of magnetic relaxation and remanent magnetization at various temperatures on a YBCO/PBCO superlattice and a YBCO thin film to investigate the fluctuation of the anisotropy of flux pinning. The measuring temperatures were from 20 K to Tc,onset and the applied magnetic field was 1000 Oe. The angles between the applied magnetic field and the c-axis of superlattices were 0°, 30°, 45°, 60°,.... In the measurement of the angular dependence of remanent magnetization, the angles between the magnetometer and c-axis were from -90° to 90°. The Anderson-Kim model was introduced to derive the pinning potential. It was observed that only the component of applied magnetic field along c-axis of the samples contributed to flux pinning and we also obtained the relation, Mθ = M∥ cosθ, where M∥ is the magnetization along the c-axis. The causes are discussed.

    Original languageEnglish
    Pages (from-to)670-674
    Number of pages5
    JournalChinese Journal of Physics
    Volume34
    Issue number2 II
    Publication statusPublished - 1996

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    magnetic relaxation
    magnetization
    flux pinning
    thin films
    magnetic fields
    magnetometers
    superlattices
    anisotropy
    temperature
    causes

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Angular dependence of magnetic relaxation and remanent magnetization on YBCO/PBCO super-lattice and YBCO thin film. / Wu, J. M.; Horng, H. E.; Yang, H. C.; Wang, L. M.

    In: Chinese Journal of Physics, Vol. 34, No. 2 II, 1996, p. 670-674.

    Research output: Contribution to journalArticle

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    abstract = "We measured the angular dependence of magnetic relaxation and remanent magnetization at various temperatures on a YBCO/PBCO superlattice and a YBCO thin film to investigate the fluctuation of the anisotropy of flux pinning. The measuring temperatures were from 20 K to Tc,onset and the applied magnetic field was 1000 Oe. The angles between the applied magnetic field and the c-axis of superlattices were 0°, 30°, 45°, 60°,.... In the measurement of the angular dependence of remanent magnetization, the angles between the magnetometer and c-axis were from -90° to 90°. The Anderson-Kim model was introduced to derive the pinning potential. It was observed that only the component of applied magnetic field along c-axis of the samples contributed to flux pinning and we also obtained the relation, Mθ = M∥ cosθ, where M∥ is the magnetization along the c-axis. The causes are discussed.",
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    AU - Wang, L. M.

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