Hall effect and flux pinning of YBa2 Cu3O y/Nd0.7Sr0.3MnO3 multilayers

Hong-Chang Yang, L. M. Wang, Herng-Er Horng, B. T. Su, J. H. Chen

    Research output: Contribution to journalArticle

    Abstract

    Hall coefficients of superconducting YBa2Cu3O y/Nd0.7Sr0.3MnO3 (YBCO/NSMO) multilayers were measured to investigate the effect of flux pinning on the Hall behavior. The lower pinning ability accompanying a diminishing sign reversal of Hall coefficient is due to a decrease of flux pinning in YBCO/NSMO multilayers. The volume pinning force, Fp= -Jc × H, of YBCO/NSMO multilayers can be represented as Fp ∞ (H/Hc2) 0.5(1 - H/Hc2)2. This suggests the existence of two-dimensional pinning centers in measured samples. The Hall coefficient and pinning force of (YBCO/NSMO) multilayers are compared with data of YBa 2Cu3Oy/PrBa2 Cu3 O y superlattices.

    Original languageEnglish
    Pages (from-to)361-363
    Number of pages3
    JournalJournal of Magnetism and Magnetic Materials
    Volume226-230
    Issue numberPART I
    DOIs
    Publication statusPublished - 2001 Jan 1

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    Flux pinning
    flux pinning
    Hall effect
    Multilayers
    Superlattices
    superlattices

    Keywords

    • Flux pinning
    • Hall effect
    • Multilayers
    • Superconductors-magnetic

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

    Cite this

    Hall effect and flux pinning of YBa2 Cu3O y/Nd0.7Sr0.3MnO3 multilayers. / Yang, Hong-Chang; Wang, L. M.; Horng, Herng-Er; Su, B. T.; Chen, J. H.

    In: Journal of Magnetism and Magnetic Materials, Vol. 226-230, No. PART I, 01.01.2001, p. 361-363.

    Research output: Contribution to journalArticle

    Yang, Hong-Chang ; Wang, L. M. ; Horng, Herng-Er ; Su, B. T. ; Chen, J. H. / Hall effect and flux pinning of YBa2 Cu3O y/Nd0.7Sr0.3MnO3 multilayers. In: Journal of Magnetism and Magnetic Materials. 2001 ; Vol. 226-230, No. PART I. pp. 361-363.
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    AU - Wang, L. M.

    AU - Horng, Herng-Er

    AU - Su, B. T.

    AU - Chen, J. H.

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    AB - Hall coefficients of superconducting YBa2Cu3O y/Nd0.7Sr0.3MnO3 (YBCO/NSMO) multilayers were measured to investigate the effect of flux pinning on the Hall behavior. The lower pinning ability accompanying a diminishing sign reversal of Hall coefficient is due to a decrease of flux pinning in YBCO/NSMO multilayers. The volume pinning force, Fp= -Jc × H, of YBCO/NSMO multilayers can be represented as Fp ∞ (H/Hc2) 0.5(1 - H/Hc2)2. This suggests the existence of two-dimensional pinning centers in measured samples. The Hall coefficient and pinning force of (YBCO/NSMO) multilayers are compared with data of YBa 2Cu3Oy/PrBa2 Cu3 O y superlattices.

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