Monte Carlo calculation of the current-voltage characteristics of a two dimensional lattice Coulomb gas

Abstract

We have studied the nonlinear current-voltage characteristic of a two dimensional lattice Coulomb gas by Monte Carlo simulation. We present three different determinations of the power-law exponent $a(T)$ of the nonlinear current-voltage characteristic, $V\sim I^{a(T)+1}$. The determinations rely on both equilibrium and non-equilibrium simulations. We find good agreement between the different determinations, and our results also agree closely with experimental results for Hg-Xe thin film superconductors and for certain single crystal thin-film high temperature superconductors.

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References in corpus (4)

• Current--Voltage Characteristics of Two--Dimensional Vortex Glass Models
• I-V Characteristics of High Temperature Superconductors with Columnar Defects
• Driven Diffusion in the Two-Dimensional Lattice Coulomb Gas; A Model for Flux Flow in Superconducting Networks
• Resistance scaling at the Kosterlitz-Thouless transition

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