Spin-wave eigenmodes of permalloy squares with a closure domain structure

被引：121

作者：

Perzlmaier, K

Buess, M

Back, CH

Demidov, VE ^{[1
]}

Hillebrands, B

Demokritov, SO

机构：

[1] Tech Univ Kaiserslautern, Fachbereich Phys, D-67663 Kaiserslautern, Germany

[2] Tech Univ Kaiserslautern, Forsch Schwerpunkt MINAS, D-67663 Kaiserslautern, Germany

[3] Univ Regensburg, D-93040 Regensburg, Germany

[4] Univ Munster, Inst Angew Phys, D-48149 Munster, Germany

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.94.057202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantized spin-wave eigenmodes in single, 16 nm thick and 0.75 to 4 mum wide square permalloy islands with a fourfold closure domain structure have been investigated by microfocus Brillouin light scattering spectroscopy and time resolved scanning magneto-optical Kerr microscopy. Up to six eigenmodes were detected and classified. The main direction of the spin-wave quantization in the domains was found to be perpendicular to the local static magnetization. An additional less pronounced quantization along the direction parallel to the static magnetization was also observed.

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页数：4

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