Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/101890
Title: Twisted magnetization states and inhomogeneous resonance modes in a Fe/Gd ferrimagnetic multilayer
Authors: Drovosekov, A. B.
Savitsky, A. O.
Kholin, D. I.
Kreines, N. M.
Proglyado, V. V.
Makarova, M. V.
Kravtsov, E. A.
Ustinov, V. V.
Issue Date: 2019
Publisher: Elsevier B.V.
Citation: Twisted magnetization states and inhomogeneous resonance modes in a Fe/Gd ferrimagnetic multilayer / A. B. Drovosekov, A. O. Savitsky, D. I. Kholin, et al. — DOI 10.1016/j.jmmm.2018.12.022 // Journal of Magnetism and Magnetic Materials. — 2019. — Vol. 475. — P. 668-674.
Abstract: Static and dynamic magnetic properties of a ferrimagnetic Fe(35Å)/Gd(50Å)12 superlattice were investigated in a wide 4–300 K temperature range using magneto-optical Kerr effect (MOKE) and ferromagnetic resonance (FMR) techniques. The multilayer structure was sputtered on a transparent glass substrate which made it possible to perform MOKE measurements on both Fe and Gd terminated sides of the superlattice. These experiments allowed us to detect a transition between field-aligned and canted magnetic states on both sides of the film and to distinguish between the bulk and surface twisted phases of the superlattice. As a result, the experimental H-T magnetic phase diagram of the system was obtained. FMR studies at frequencies 7–36 GHz demonstrated a complex evolution of absorption spectra as temperature decreased from room down to 4 K. Two spectral branches were detected in the sample. Theoretical simulations show that the observed spectral branches correspond to different types of inhomogeneous resonance modes in the multilayer with non-uniform magnetization precession inside Gd layers. © 2018 Elsevier B.V.
Keywords: FE/GD MULTILAYER
FERRIMAGNETICS
FERROMAGNETIC RESONANCE
MAGNETIC PROPERTIES
FERRIMAGNETISM
FERROMAGNETIC MATERIALS
FERROMAGNETIC RESONANCE
FERROMAGNETISM
GADOLINIUM
MAGNETIC PROPERTIES
MAGNETIZATION
MULTILAYERS
SUBSTRATES
COMPLEX EVOLUTIONS
FERRIMAGNETICS
FERROMAGNETIC RESONANCE (FMR)
MAGNETIC PHASE DIAGRAMS
MAGNETO-OPTICAL KERR EFFECTS
MULTILAYER STRUCTURES
NON-UNIFORM MAGNETIZATIONS
THEORETICAL SIMULATION
OPTICAL KERR EFFECT
URI: http://hdl.handle.net/10995/101890
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85058382741
PURE ID: 8429614
69a2297f-bc69-4893-b7e7-645c3da5c48b
ISSN: 3048853
DOI: 10.1016/j.jmmm.2018.12.022
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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