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.
H. W. J. Blöte, M. P. Nightingale, X. N. Wu, and A. Hoogland. (1991). "Field-induced Kosterlitz-Thouless transition in the zero-temperature triangular Ising antiferromagnet." Physical Review B, 43(10), 8751(R). Available at: http://dx.doi.org/10.1103/PhysRevB.43.8751