Peak effect in superconductors: Melting of Larkin domains

Chao Tang, Xinsheng Ling, S. Bhattacharya, P. M. Chaikin

    Research output: Contribution to journalArticle

    Abstract

    Motivated by the recent observations of the peak effect in high-Tc YBCO superconductors, we re-examine the origin of this unusual phenomenon. We propose that the sharp peak in the critical current as a function of temperature or magnetic field is an interesting manifestation of vortex-lattice melting in the presence of weak random pinning. Specifically, the rise of the critical current with increasing temperature or field is a result of a crossover from the Larkin pinning length to a length scale set by thermal fluctuations.

    Original languageEnglish (US)
    Pages (from-to)597-602
    Number of pages6
    JournalEPL
    Volume35
    Issue number8
    DOIs
    StatePublished - Sep 10 1996

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    critical current
    melting
    YBCO superconductors
    crossovers
    temperature distribution
    vortices
    magnetic fields
    temperature

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Cite this

    Tang, C., Ling, X., Bhattacharya, S., & Chaikin, P. M. (1996). Peak effect in superconductors: Melting of Larkin domains. EPL, 35(8), 597-602. https://doi.org/10.1209/epl/i1996-00157-x

    Peak effect in superconductors : Melting of Larkin domains. / Tang, Chao; Ling, Xinsheng; Bhattacharya, S.; Chaikin, P. M.

    In: EPL, Vol. 35, No. 8, 10.09.1996, p. 597-602.

    Research output: Contribution to journalArticle

    Tang, C, Ling, X, Bhattacharya, S & Chaikin, PM 1996, 'Peak effect in superconductors: Melting of Larkin domains', EPL, vol. 35, no. 8, pp. 597-602. https://doi.org/10.1209/epl/i1996-00157-x
    Tang C, Ling X, Bhattacharya S, Chaikin PM. Peak effect in superconductors: Melting of Larkin domains. EPL. 1996 Sep 10;35(8):597-602. https://doi.org/10.1209/epl/i1996-00157-x
    Tang, Chao ; Ling, Xinsheng ; Bhattacharya, S. ; Chaikin, P. M. / Peak effect in superconductors : Melting of Larkin domains. In: EPL. 1996 ; Vol. 35, No. 8. pp. 597-602.
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