Logarithmic corrections in the two-dimensional Ising model in a random surface field
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
In the two-dimensional Ising model weak random surface field is predicted to be a marginally irrelevant perturbation at the critical point. We study this question by extensive Monte Carlo simulations for various strength of disorder. The calculated effective (temperature or size dependent) critical exponents fit with the field-theoretical results and can be interpreted in terms of the predicted logarithmic corrections to the pure system's critical behaviour.
10 pages, 4 figures, extended version with one new section
10 pages, 4 figures, extended version with one new section