A six-state clock-like phase transition in a coupled XY model

Chia-Chi Shih and I-Min Jiang

Physica A: Statistical Mechanics and its Applications, 2005, vol. 358, issue 2, 366-378

Abstract: This study adopts the Monte Carlo simulation method to investigate a coupled XY model on triangular lattices in two dimensions. The simulation reveals a unique six-state clock-like phase transition in addition to an original XY phase transition. Analyzing the spin histograms exposes that the strong on-site coupling tends to lock the difference between the phase variables of the two XY order parameters and generates an additional phase transition. The phase transition in the model includes both continuous and discrete symmetries in some coupling parameter domain.

Keywords: KT transition; Six-state clock model (search for similar items in EconPapers)
Date: 2005
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:358:y:2005:i:2:p:366-378

DOI: 10.1016/j.physa.2005.03.051

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