Time-domain excitation of quantized magnetostatic spin-wave modes in patterned NiFe thin film ensembles

被引：27
作者：
Crawford, TM [1 ]
Covington, M [1 ]
Parker, GJ [1 ]
机构：
[1] Seagate Res, Pittsburgh, PA 15222 USA
来源：
PHYSICAL REVIEW B | 2003年 / 67卷 / 02期
关键词：
D O I：
10.1103/PhysRevB.67.024411
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We measure quantized spin waves excited by a spatially inhomogeneous pulsed magnetic field in patterned NiFe thin films by inductive detection of the dynamic magnetization. When anisotropy and numerically calculated demagnetizing fields are included in the magnetostatic Damon-Eshbach spin-wave dispersion relation, the predicted mode frequencies agree closely with measurements. Micromagnetic calculations predict the correct mode frequencies and agree remarkably well with time-domain measurements.
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页数：5
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