Two-dimensional ising models with competing interaction—a Monte Carlo study |
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| Authors: | W. Selke M. E. Fisher |
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| Affiliation: | 1. Fachrichtung Theoretische Physik, Universit?t des Saarlandes, D-6600, Saarbrücken, Federal Republic of Germany
2. Baker Laboratory, Cornell University, 14853, Ithaca, New York, USA
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| Abstract: | Two-dimensional Ising models on a square lattice with competing interactions along one axis or both axes are studied primarily by the Monte Carlo method. Several commensurate-incommensurate transitions are found. Dislocation-like configurations are identified near the sinusoidal — paramagnetic transition in accordance with the idea that the transition might be of Kosterlitz-Thouless, XY-like character. |
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