The effect of transverse field on fast domain wall dynamics in magnetic microwires

被引：52
作者：
Richter, K. [1 ,2 ]
Varga, R. [1 ]
Badini-Confalonieri, G. A. [2 ]
Vazquez, M. [2 ]
机构：
[1] UPJS, Fac Sci, Inst Phys, Kosice 04154, Slovakia
[2] CSIC, Inst Ciencia Mat Madrid, E-28049 Madrid, Spain
来源：
APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 18期
关键词：
boron alloys; iron alloys; magnetic domain walls; magnetic moments; magnetostriction; phosphorus alloys; silicon alloys; wires;
D O I：
10.1063/1.3428367
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have studied the domain wall longitudinal propagation and its dynamics under the influence of transverse magnetic field in thin magnetic wires. A different behavior was observed for strong and weak transverse fields. In weak transverse field H(t), the domain wall dynamics depends on the direction of H(t). Transverse field applied in one direction increases the Walker limit and shifts the existence of transverse domain wall to higher axial field. Transverse magnetic field applied in opposite direction decreases the Walker limit and favors vortex domain wall even at low fields. Different behavior was obtained in strong transverse field which speeds up the domain wall velocity to its saturation value of 9 km/s independently on the orientation of transverse field. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3428367]
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页数：3
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