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arXiv · 1112.4666

Relaxation at finite temperature in Fully-Frustrated Ising Models

Jean-Charles Walter·Christophe Chatelain
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Abstract

We consider by means of Monte Carlo simulations the relaxation in the paramagnetic phase of the anti-ferromagnetic Ising model on a triangular lattice and of a fully-frustrated Ising model on a square lattice. In contradistinction to previous studies of the second model, we show that spin-spin correlation functions do not decay with a stretched-exponential law at low temperature but that both models display an exponential decay with logarithmic corrections that are interpreted as the signature of topological defects.

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Jean-Charles Walter, Christophe Chatelain. 2011-12-20. Relaxation at finite temperature in Fully-Frustrated Ising Models. https://doi.org/10.1088/1742-5468%2F2012%2F02%2Fp02010

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