A FIRST-ORDER PHASE-TRANSITION IN ISING FERRIMAGNETS

被引：1
|
作者：
ALMUKADAM, HM
UZUNOV, DI
机构：
来源：
MODERN PHYSICS LETTERS B | 1995年 / 9卷 / 21期
关键词：
D O I：
10.1142/S0217984995001339
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The mean field theory is used for the analysis of a two-sublattice system of Ising spins, which describes ferro-, antiferro-, and ferrimagnetic orderings. It is proven that the phase transition in these systems is of a first order when the exchange constants of the sublattices are different. The free energy, the order parameter profiles and the latent heat of the phase transition are calculated for almost equivalent sublattices.
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页码：1347 / 1351
页数：5
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