Spin-wave excitations in finite rectangular elements of Ni80Fe20 -: art. no. 064427

被引：145

作者：

Bayer, C

Jorzick, J

Hillebrands, B

Demokritov, SO

Kouba, R

Bozinoski, R

Slavin, AN

Guslienko, KY

Berkov, DV

Gorn, NL

Kostylev, MP

机构：

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

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

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

[4] Oakland Univ, Dept Phys, Rochester, MI 48309 USA

[5] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[6] INNOVENT eV Jena, D-07745 Jena, Germany

[7] St Petersburg Electrotech Univ, St Petersburg 197376, Russia

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.72.064427

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A Brillouin light scattering study and theoretical interpretation of spin-wave modes in arrays of in-plane magnetized micron-size rectangular Ni80Fe20 elements are reported. It is shown that two-dimensional spin-wave eigenmodes of these elements can be approximately described as products of one-dimensional spin-wave eigenmodes of longitudinally and transversely magnetized long finite-width permalloy stripes. The lowest eigenmodes of rectangular elements are of dipole-exchange nature and are localized near the element edges, while the higher eigenmodes are of a mostly dipolar nature and are weakly localized near the element center. The frequency spectra and spatial profiles of these eigenmodes are calculated both analytically and numerically, and are compared with the results of the Brillouin light scattering experiment.

引用

页数：12

共 44 条

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