Spin-wave excitations in finite rectangular elements

Author

Bayer, C. ; Jorzick, J. ; Hillebrands, B. ; Demokritov, S.O. ; Slavin, A.N. ; Guslienko, K. ; Berkov, D. ; Gorn, N. ; Kostylev, M.P.

Author_Institution

Fachbereich Physik & Forschungsschwerpunkt, Technische Univ. Kaiserslautern, Germany

fYear

2005

fDate

4-8 April 2005

Firstpage

2057

Lastpage

2058

Abstract

Excitation spectrum of homogeneously magnetized Ni₈₀Fe₂₀ rectangles using Brillouin light scattering (BLS) is reported. A model to qualitatively describe the spin-wave spectrum is presented and its results is compared with both experiment and micromagnetic simulations. Micromagnetic simulation show that the internal field is inhomogeneous along the direction of the applied field. It was concluded that the spin wave modes can be approximately described as a linear combination of the modes of a longitudinally magnetized stripe and a transversely magnetized stripe.

Keywords

Brillouin spectra; ferromagnetic materials; iron alloys; micromagnetics; nickel alloys; spin waves; Brillouin light scattering; Ni₈₀Fe₂₀; excitation spectrum; finite rectangular elements; homogeneously magnetized rectangles; longitudinally magnetized stripe; micromagnetic simulations; spin wave modes; spin-wave excitations; transversely magnetized stripe; Brillouin scattering; Frequency; Light scattering; Magnetic confinement; Magnetic field measurement; Magnetic fields; Micromagnetics; Object oriented modeling; Physics; Transistors;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International

Print_ISBN

0-7803-9009-1

Type

conf

DOI

10.1109/INTMAG.2005.1464467

Filename

1464467