Thermodynamic properties of the anisotropic Heisenberg model with Dzyaloshinsky–Moriya interaction

We study the thermodynamic properties of spin- 1 2 anisotropic Heisenberg model with Dzyaloshinsky-Moriya (DM) interaction using the Oguchi approximation. Although the theory is developed for lattices with general coordination number z, we treat in detail the model in the simple cubic lattice ( z=6)...

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Bibliographic Details
Published in:Physica A 1998-09, Vol.258 (1), p.221-229
Main Authors: Sousa, J.Ricardo de, Lacerda, F., Fittipaldi, I.P.
Format: Article
Language:English
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Summary:We study the thermodynamic properties of spin- 1 2 anisotropic Heisenberg model with Dzyaloshinsky-Moriya (DM) interaction using the Oguchi approximation. Although the theory is developed for lattices with general coordination number z, we treat in detail the model in the simple cubic lattice ( z=6), where the critical and tricritical behavior of the thermodynamic properties are analysed as a function of DM parameter.
ISSN:0378-4371
1873-2119
DOI:10.1016/S0378-4371(97)00537-2