The tricritical point in Ising models with random bonds and crystal-field interactions
- 10 September 1986
- journal article
- Published by IOP Publishing in Journal of Physics C: Solid State Physics
- Vol. 19 (25) , L557-L561
- https://doi.org/10.1088/0022-3719/19/25/003
Abstract
A spin-1 Ising model with random bonds and crystal-field interactions Delta i is investigated by the use of effective-field theory with correlations. The general expressions for evaluating the second-order phase transition and the tricritical point are obtained. For a particular case with p( Delta i)=p delta ( Delta i- Delta )+p delta ( Delta i) the behaviour of the tricritical point with p is studied for a honeycomb lattice.Keywords
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