Versatility of the Two-Ion Quartic Spin Model of Spontaneous Metamagnetism
✍ Scribed by J. Szymański; H. Cofta
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 536 KB
- Volume
- 146
- Category
- Article
- ISSN
- 0370-1972
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📜 SIMILAR VOLUMES
Two-sublattice collinear Heisenberg-lsing (S = 1) metamagnets with uniaxial three-ion anisotropy are investigated. Thermedynamicai properties of this model are examined in th~ approximation including Gaussian fluctuations of the molecular field. The complete phase diagrams are obtained numeric.a,.,
Two dimensional spin-fermion model is studied by using the perturbation method and the spin wave approximation. Non-crossing diagrams are calculated using the dominant pole approximation. As a result, we see that the renormalization parameter z is reduced as z ¢x L -1;4, where L is the linear dimens