Evidence of first-order transition between vortex glass and Bragg glass phases in high-T_{\rm c} superconductors with point pins: Monte Carlo simulations

2000/02/17 by Yoshihiko Nonomura, Xiao Hu, Nonomura, Yoshihiko +1
Physics and Astronomy · #FOS: Physical sciences #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con

paper · pdf · doi:10.48550/arxiv.cond-mat/0002263

4 pages, 5 Postscript figures, uses revtex.sty

arxiv created 2000/02/17 · arxiv updated 2009/11/30

Abstract

Phase transition between the vortex glass and the Bragg glass phases in high-T_{\rm c} superconductors in B∥c is studied by Monte Carlo simulations in the presence of point pins. A finite latent heat and a δ-function peak of the specific heat are observed, which clearly indicates that this is a thermodynamic first-order phase transition. Values of the entropy jump and the Lindemann number are consistent with those of melting transitions. A large jump of the inter-layer phase difference is consistent with the recent Josephson plasma resonance experiment of Bi₂Sr₂CaCu₂O_8+y by Gaifullin \it et al.

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