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

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

arxiv.org/abs/cond-mat/0002263v1

Physics

Condensed Matter

Superconductivity

4 pages, 5 Postscript figures, uses revtex.sty

Scientific paper

Phase transition between the vortex glass and the Bragg glass phases in high-$T_{\rm c}$ superconductors in $\vec{B}\parallel\vec{c}$ is studied by Monte Carlo simulations in the presence of point pins. A finite latent heat and a $\delta$-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 Bi$_{2}$Sr$_{2}$CaCu$_{2}$O$_{8+y}$ by Gaifullin {\it et al.}

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