Dynamics of glass phases in the three-dimensional gauge glass model

¹  Center for Statistical and Theoretical Condensed Matter Physics, Zhejiang Normal University, Jinhua 321004, PRC
²  Department of Physics, Zhejiang University - Hangzhou 310027, PRC

Corresponding author: qhchen@zju.edu.cn

Received: 5 June 2008
Accepted: 5 November 2008

Abstract

Large-scale simulations have been performed in the current-driven three-dimensional XY gauge glass model with resistively-shunted-junction dynamics. It is observed that the linear resistivity at low temperatures tends to zero, providing a strong evidence of a finite-temperature glass transition. Dynamical-scaling analysis demonstrates that a perfect collapse of current-voltage data can be achieved. The obtained critical exponents agree quite well with those in equilibrium Monte Carlo simulations. A genuine continuous depinning transition is found at zero temperature. For low-temperature creep motion, critical exponents are evaluated, and a non-Arrhenius creep motion is observed in the glass phase.