Critical Point of the Honeycomb Antiferromagnetic Ising Model in a Nonzero Magnetic Field: An Analytical Analysis |
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| Authors: | Y.X. SONG J.M. YANG G.R. LU |
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| Affiliation: | 1. Center of Theoretical Physica, CCAST (World Lab.), P.O. Box 8730, Beijing 100080;2. Physics Department, Sichuan University, Chengdu 610064, China;3. Physics Department, Henan Normal University, Xinxiang 453002, China |
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| Abstract: | In this paper we determined the critical point of the antiferromagnetic Ising model in a nonzero magnetic field on the honeycomb lattice by an analytical method-the generalized cumulant expansion with the mean field hypothesis. By calculating the magnetization to the fourth order correction, we get encouraging results when compared with the known numerical results by finite size analysis. |
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