Phase Transition of Two-Dimensional Diluted XY and Clock Models
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概要
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We study the two-dimensional bond-diluted XY and 6-state clock models by Monte Carlo simulation with cluster spin updates. We show that with dilution the KT transition temperature approaches zero at the percolation threshold, and the decay exponent at the KT temperature is universal, that is, η=1/4. For the 6-state clock model, we observe a systematic shift of lower critical temperature due to the discrete symmetry. The universal behavior of the decay exponent at the lower KT temperature is also shown.
- 理論物理学刊行会の論文
- 2005-04-30
著者
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Okabe Yutaka
Department Of Applied Chemistry Science And Engineering Waseda University
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Surungan Tasrief
Department Of Physics Tokyo Metropolitan University:(present Address)department Of Physics Hasanuddi
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SURUNGAN Tasrief
Department of Physics, Tokyo Metropolitan University:(Present address)Department of Physics, Hasanuddin University
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