Issue
EPL
Volume 84, Number 6, December 2008
Article Number 64001
Number of page(s) 5
Section Electromagnetism, Optics, Acoustics, Heat Transfer, Classical Mechanics, and Fluid Dynamics
DOI http://dx.doi.org/10.1209/0295-5075/84/64001
Published online 17 December 2008
EPL, 84 (2008) 64001
DOI: 10.1209/0295-5075/84/64001

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

Q. H. Chen 1, 2

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

qhchen@zju.edu.cn

received 5 June 2008; accepted in final form 5 November 2008; published December 2008
published online 17 December 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.

PACS
47.32.C- - Vortex dynamics.
64.70.Q- - Theory and modeling of the glass transition.
68.35.Rh - Phase transitions and critical phenomena.

© EPLA 2008