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Physics  1998 

Low temperature phase diagram and critical behaviour of the four-state chiral clock model

DOI: 10.1088/0305-4470/31/21/006

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The low temperature behaviour of the four-state chiral clock ($CC_4$) model is reexamined using a systematic low temperature series expansion of the free energy. Previously obtained results for the low temperature phases are corrected and the low temperature phase diagram is derived. In addition, the phase transition from the modulated region to the high temperature paraphase is shown to belong to the universality class of the 3d-XY model.


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