Low-field phase diagram of layered superconductors: The role of electromagnetic coupling

1995/07/11 by G. Blatter, Gianni Blatter, V. B. Geshkenbeǐn +3 · 6 citations
Physics and Astronomy · #Advanced Condensed Matter Physics #Physics of Superconductivity and Magnetism #Superconductivity in MgB2 and Alloys #cond-mat.supr-con #supr-con

paper · pdf · doi:10.1103/physrevb.54.72

12 pages, 1 figure attached as compressed and uuencoded postscript

arxiv created 1995/07/11 · openalex publication_date 1996/07/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We determine the position and shape of the melting line in a layered superconductor, emphasizing the importance of electromagnetic interactions in the vortex system. In the limit of vanishing Josephson coupling we obtain a generic reentrant low-field melting line. Finite Josephson coupling pushes the melting line to higher temperatures and fields and a line shape B_m\ensuremath∝(1-T/T_c)^3/2 is found. We construct the low-field phase diagram including melting and decoupling lines and discuss various experiments in the light of our results. \textcopyright 1996 The American Physical Society.

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