Dynamic and Static Properties of a Two-Sublattice Anisotropic Non-Heisenberg Magnet

被引:2
|
作者
Yarygina, E. A. [1 ]
Matyunina, Ya Yu [1 ]
Klevets, Ph N. [1 ]
Fridman, Yu A. [1 ]
机构
[1] Vernadsky Crimean Fed Univ, Simferopol 295007, Russia
关键词
COUPLED MAGNETOELASTIC WAVES; PHASE-TRANSITIONS; NEMATIC STATES; SPIN; EXCITATIONS; FERROMAGNET; RELAXATION; SPECTRA;
D O I
10.1134/S1063776119110086
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The effect of single-ion anisotropy on the phase states and dynamic properties of a non-Heisenberg magnet with S = 1 is investigated in the mean field approximation. It is shown that, in contrast to the isotropic model, the inclusion of single-ion anisotropy changes the type of phase transitions between the dipole and nematic phases and leads to the disappearance of the SU(3) point. The phase diagram is constructed.
引用
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页码:1070 / 1078
页数:9
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