Date of Original Version
We investigate the zero-temperature triangular Ising antiferromagnet in a magnetic field by means of transfer matrix and Monte Carlo methods. The finite-size results are compared with predictions obtained from a mapping to the Gaussian model. The results confirm the presence of a field-induced Kosterlitz-Thouless transition to a state with long-range order.
Blöte, H. W. J., Nightingale, M. P., Wu, X. N., & Hoogland, A. (1991). Field-induced Kosterlitz-Thouless transition in the zero-temperature triangular Ising antiferromagnet. Physical Review B, 43(10), 8751-8754. doi: 10.1103/PhysRevB.43.8751
Available at: http://dx.doi.org/10.1103/PhysRevB.43.8751