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.
- Received 17 November 2003
DOI:https://doi.org/10.1103/PhysRevB.69.081403
©2004 American Physical Society