Mean-field renormalization group for the q-state clock spin-glass model

Shyh-Tzer Chen

Physica A: Statistical Mechanics and its Applications, 1996, vol. 229, issue 2, 181-187

Abstract: The mean-field renormalization group is used to study the phase diagrams of a d-dimensional q-state clock spin-glass model. We found, for q = 3 clock, the transition from paramagnet to spin glass is an isotropic spin-glass phase, but for q = 4 clock, the transition from paramagnet to spin glass is an anisotropic spin-glass phase. However, for q ⩾ 5 clock, the result of anisotropic spin-glass phase depends on the temperature and the distribution of random coupling. While the coordinate number approaches infinity, the critical temperature evaluated by the mean-field renormalization group method is equal to that by the replica method.

Keywords: Renormalization; Paramagnet; Spin-glass; Anisotropic (search for similar items in EconPapers)
Date: 1996
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:229:y:1996:i:2:p:181-187

DOI: 10.1016/0378-4371(96)00015-5

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