Title :
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
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;
Conference_Titel :
Magnetics Conference, 2005. INTERMAG Asia 2005. Digests of the IEEE International
Print_ISBN :
0-7803-9009-1
DOI :
10.1109/INTMAG.2005.1464467
