Intrinsic localized modes of a classical discrete anisotropic Heisenberg ferromagnetic spin chain

被引:23
作者
Lakshmanan, M. [1 ]
Subash, B. [1 ]
Saxena, Avadh [2 ,3 ]
机构
[1] Bharathidasan Univ, Dept Phys, Ctr Nonlinear Dynam, Tiruchirappalli 620024, Tamil Nadu, India
[2] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[3] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
关键词
Classical spin model; Intrinsic localized mode; Discrete breather; Stability; BREATHERS; EXISTENCE; DYNAMICS; LATTICES; WAVES;
D O I
10.1016/j.physleta.2014.02.026
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report several exact intrinsic localized mode solutions one-dimensional anisotropic Heisenberg ferromagnetic spin These include one, two and three spin excitations. All these Their linear stability and semiclassical quantization are also of the classical spin evolution equation of a chain in terms of Jacobian elliptic functions. solutions have smooth anticontinuum limits. discussed briefly. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:1119 / 1125
页数:7
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