Comparison of experimental and numerical micromagnetic dynamics in coherent precessional switching and modal oscillations

被引：52

作者：

Hiebert, WK ^{[1
]}

Ballentine, GE ^{[1
]}

Freeman, MR ^{[1
]}

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 14期

关键词：

D O I：

10.1103/PhysRevB.65.140404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Spatiotemporally resolved experimental vector magnetometry is combined with time-domain numerical micromagnetic simulation to investigate two, precessional-based, dynamic processes in thin-film magnetic elements. Large angle (>180degrees), ultrafast, magnetization vector motions compare well between experiment and simulation and constitute a direct observation of nearly-ideal precessional switching. High-frequency spin-wave generation is inferred by apparent reduction in the magnetization vector length. Small angle (<1degrees) nonequilibrium modal oscillations in ferromagnetic resonance are compared and show considerable agreement in the long-wavelength magnetic spatial structure.

引用

页码：1404041 / 1404044

页数：4

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