Frustrated Heisenberg Antiferromagnets between d=2 and d=3
arXiv:cond-mat/0311390 · doi:10.1103/PhysRevB.69.081403
Abstract
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.
4 pages, 6 figures