THE SU(3) SYMMETRY AND MACROSCOPIC DYNAMICS OF MAGNETS WITH SPIN s=1

被引：0
|
作者：
Kovalevskii, M. Yu. [1 ,2 ]
机构：
[1] Kharkov Phys & Technol Inst, Natl Sci Ctr, UA-310108 Kharkov, Ukraine
[2] Belgorod State Univ, Belgorod, Russia
来源：
THEORETICAL AND MATHEMATICAL PHYSICS | 2011年 / 168卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
spin; quadrupole matrix; dynamics; Poisson bracket; Hamiltonian approach; magnon momentum; collective excitation spectrum; relaxation; HYDRODYNAMIC THEORY; POISSON BRACKETS; NEMATIC PHASE; FERROMAGNET; RELAXATION; CONDENSATE; FIELD;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In the Hamiltonian approach, we derive nonlinear dynamic equations for magnetic media with spin s = 1. We introduce two types of magnetic exchange Hamiltonians corresponding to the Casimir invariants of the SU(3) group. We find the spectra of spin and quadrupole waves corresponding to the states with different symmetries under the time reversal transformation. We consider the effect of dissipative processes and find relaxation fluxes caused by the exchange symmetry of the magnetic Hamiltonian.
引用
收藏
页码：1064 / 1077
页数：14
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