| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1543 - C8-1544 | |
| DOI | https://doi.org/10.1051/jphyscol:19888706 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1543-C8-1544
DOI: 10.1051/jphyscol:19888706
Department of Physics, University of Sheffield, Sheffield, G.B.
J. Phys. Colloques 49 (1988) C8-1543-C8-1544
DOI: 10.1051/jphyscol:19888706
STATISTICAL MECHANICS OF ISING MODELS WITH S > 1 HAVING BIQUADRATIC EXCHANGE AND UNIAXIAL ANISOTROPY
J. W. TuckerDepartment of Physics, University of Sheffield, Sheffield, G.B.
Abstract
Ising ferromagnets having spins greater than unity, with the inclusion of biquadratic exchange and single-ion anisotropy, are studied by the cluster variational method. The critical temperature, the magnetization curves, and the thermal variation of the quadrupolar moment, are studied for a range of interaction parameters where anomalous behaviour occurs.