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~Ia(T)+1. The determinations rely on both equilibrium and nonequilibrium 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.
- Publication:
-
Physical Review B
- Pub Date:
- April 1996
- DOI:
- 10.1103/PhysRevB.53.8566
- arXiv:
- arXiv:cond-mat/9601040
- Bibcode:
- 1996PhRvB..53.8566W
- Keywords:
-
- 05.70.Jk;
- 64.60.Cn;
- 74.20.De;
- Critical point phenomena;
- Order-disorder transformations;
- statistical mechanics of model systems;
- Phenomenological theories;
- Condensed Matter
- E-Print:
- latex