Isotropic magnetoelastic interaction in two-sublattice ferri- and antiferromagnets: Mean-field approximation for the Heisenberg model

被引：0
作者：
Valiev, EZ [1 ]
机构：
[1] Russian Acad Sci, Inst Met Phys, Ural Div, Ekaterinburg 620219, Russia
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2003年 / 96卷 / 02期
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中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
A generalization of the exchange magnetostriction model for magnets with two different magnetic sublattices is performed. By minimizing free energy, with allowance for the explicit dependence of the exchange integrals on homogeneous deformations, equations of state for the magnetic and elastic subsystems in two-sublattice ferri- and anti ferromagnets were obtained. These equations were used for an analysis of first-order order phase transitions in YMn2 and ErCo2 compounds.
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页码：121 / 127
页数：7
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