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Current-voltage characteristics of the two-dimensionalXYmodel with Monte Carlo dynamics

2000/10/07 by Beom Jun Kim
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat.supr-con

paper · pdf · doi:10.1103/physrevb.63.024503

published as Phys. Rev. B 63, 024503 (2001) · 5 pages in two columns including 5 figures, to appear in PRB

arxiv created 2000/10/07 · openalex publication_date 2000/12/13 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

Current-voltage characteristics and the linear resistance of the two-dimensional XY model with and without external uniform current driving are studied by Monte Carlo simulations. We apply the standard finite-size scaling analysis to get the dynamic critical exponent z at various temperatures. From the comparison with the resistively shunted junction dynamics, it is concluded that z is universal in the sense that it does not depend on details of dynamics. This comparison also leads to the quantification of the time in the Monte Carlo dynamic simulation.

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