Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102751
Title: Magnetization and ferromagnetic resonance in a Fe/Gd multilayer: Experiment and modelling
Authors: Drovosekov, A. B.
Kreines, N. M.
Savitsky, A. O.
Kravtsov, E. A.
Ryabukhina, M. V.
Proglyado, V. V.
Ustinov, V. V.
Issue Date: 2017
Publisher: Institute of Physics Publishing
Citation: Magnetization and ferromagnetic resonance in a Fe/Gd multilayer: Experiment and modelling / A. B. Drovosekov, N. M. Kreines, A. O. Savitsky, et al. — DOI 10.1088/1361-648X/aa54f1 // Journal of Physics Condensed Matter. — 2017. — Vol. 29. — Iss. 11. — 115802.
Abstract: Static and dynamic magnetic properties of a [Fe(35 Å<rf)/Gd(50 Å)]12 superlattice are investigated experimentally in the temperature range 5-295 K using SQUID magnetometery and the ferromagnetic resonance (FMR) technique at frequencies 7-38 GHz. The obtained magnetization curves and FMR spectra are analysed theoretically using numerical simulation on the basis of the effective field model. At every given temperature, both static and resonance experimental data can be approximated well within the proposed model. However, a considerable temperature dependence of the effective field parameter in gadolinium layers has to be taken into account to achieve reasonable agreement with the experimental data in the entire temperature range studied. To describe the peculiarities of experimental FMR spectra, a non-local diffusion-type absorption term in Landau-Lifshitz equations is considered in addition to the Gilbert damping term. Possible reasons for the observed effects are discussed. © 2017 IOP Publishing Ltd.
Keywords: FE/GD MULTILAYER
FERROMAGNETIC RESONANCE
MEAN-FIELD MODEL
SPIN DIFFUSION
FERROMAGNETIC MATERIALS
FERROMAGNETISM
MAGNETIZATION
MEAN FIELD THEORY
MULTILAYERS
TEMPERATURE DISTRIBUTION
EFFECTIVE FIELD MODELS
FERROMAGNETIC RESONANCE (FMR)
LANDAU LIFSHITZ EQUATION
MAGNETIZATION CURVES
MEAN FIELD MODELING
NONLOCAL DIFFUSION
SPIN DIFFUSIONS
TEMPERATURE DEPENDENCE
FERROMAGNETIC RESONANCE
URI: http://hdl.handle.net/10995/102751
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85013155754
PURE ID: 1617671
5cd4cc9c-7b59-49ca-8949-042d2198950a
ISSN: 9538984
DOI: 10.1088/1361-648X/aa54f1
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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