Switching between different vortex states in two-dimensional easy-plane magnets due to an ac magnetic field

被引：23
|
作者：
Gaididei, Y [1 ]
Kamppeter, T
Mertens, FG
Bishop, AR
机构：
[1] Inst Theoret Phys, UA-252143 Kiev, Ukraine
[2] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany
[3] Univ Calif Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA
[4] Univ Calif Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA
来源：
PHYSICAL REVIEW B | 2000年 / 61卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.61.9449
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using a discrete model of two-dimensional easy-plane classical ferromagnets, we propose that a rotating magnetic field in the easy plane can switch a vortex from one polarization to the opposite one if the amplitude exceeds a threshold value, but the backward process does not occur. Such switches are indeed observed in computer simulations.
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页码：9449 / 9452
页数：4
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