STUDY OF FORCED DOMAIN-WALL MOTION IN A ONE-DIMENSIONAL XYZ-HEISENBERG FERROMAGNET

被引：0
|
作者：
HEUER, K [1 ]
机构：
[1] UNIV DUISBURG GESAMTHSCH,W-4100 DUISBURG,GERMANY
来源：
PHYSICS LETTERS A | 1991年 / 159卷 / 03期
关键词：
D O I：
10.1016/0375-9601(91)90258-A
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Acceleration and motion of originally resting domain walls forced by an external magnetic field are studied semiclassically using coherent spin states for a Heisenberg spin chain. Numerical calculations show that generally the walls move with a constant drift velocity after a short acceleration period. A competition between external field and damping by spin wave generation is responsible for the steady motion. For special magnetic anisotropies an intrinsic pinning of the domain walls occurs.
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页码：123 / 127
页数：5
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