The antiferromagnetic Heisenberg model on a stacked triangular geometry with a finite number of layers is studied using Monte Carlo methods. A topological phase transition occurs at finite temperature for all film thicknesses. Our results indicate that topological excitations are important for a complete understanding of the critical properties of the model between two and three dimensions.
@article{arxiv.cond-mat/0311390,
title = {Frustrated Heisenberg Antiferromagnets between d=2 and d=3},
author = {A. Peles and B. W. Southern},
journal= {arXiv preprint arXiv:cond-mat/0311390},
year = {2009}
}