Magnetic resonance in multilayer Gd/Si/Co magnetic films

Patrin, G. S.; Vas’kovskii, V. O.; Svalov, A. V.; Еремин, Е. В.; Panova, M. A.; Васильев, В. Н.

doi:10.1134/s1063776106010158

Cited by 5 publications

(5 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…5a). This result is opposite to the behaviour reported in the previous works [21][22][23] and clearly contradicts to the simple approximation of strongly coupled FM layers.…”

Section: Ferromagnetic Resonancecontrasting

confidence: 99%

“…5b,c). The same behaviour was observed earlier for different types of TM/Gd multilayers [21][22][23]. This effect can be qualitatively described, considering a strongly coupled layered ferrimagnet (see Appendix in the end of this paper), so this behaviour can be considered as "normal".…”

Section: Ferromagnetic Resonancesupporting

confidence: 80%

“…Several groups reported about the effect of line broadening and shift of the absorption peak to lower fields at cooling the system below room temperature. Such behaviour was observed for Co/Gd [21,22], Py/Gd [23], Fe/Gd [11] and Fe/Cr/Gd [24,25] multilayers.…”

Section: Gd H S H Bmentioning

confidence: 53%

“…Studies of magnetization dynamics in RE/TM systems attract attention due to a recent idea to use such materials for realization of ultrafast magnetic switching, promising for potential applications in magnetic storage devices [14][15][16]. A num-ber of works were devoted to investigations of ferromagnetic resonance (FMR) in TM/Gd multilayers [17][18][19][20][21][22][23][24][25][26]. Room temperature studies [17][18][19][20] demonstrated the importance of spin pumping into RE metal to explain a large FMR line width in TM/RE systems.…”

Section: Gd H S H Bmentioning

confidence: 99%

See 3 more Smart Citations

Twisted magnetization states and inhomogeneous resonance modes in a Fe/Gd ferrimagnetic multilayer

Дровосеков

Savitsky

Kholin

et al. 2019

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

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.

show abstract

“…5a). This result is opposite to the behaviour reported in the previous works [21][22][23] and clearly contradicts to the simple approximation of strongly coupled FM layers.…”

Section: Ferromagnetic Resonancecontrasting

confidence: 99%

Section: Ferromagnetic Resonancesupporting

confidence: 80%

Section: Gd H S H Bmentioning

confidence: 53%

Section: Gd H S H Bmentioning

confidence: 99%

See 2 more Smart Citations

Twisted magnetization states and inhomogeneous resonance modes in a Fe/Gd ferrimagnetic multilayer

Дровосеков

Savitsky

Kholin

et al. 2019

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

show abstract

“…In this situation, only a weak temperature dependent shift of the absorption line was observed which was described qualitatively on the basis of the mean-field calculations. In the works [17,18], Co(30 Å)/Gd(75 Å) superlattices with much thicker Gd layers demonstrated much stronger temperature dependence of FMR spectra. Two absorption lines were observed [17].…”

Section: Introductionmentioning

confidence: 95%

Magnetization and ferromagnetic resonance in a Fe/Gd multilayer: experiment and modelling

Дровосеков

Крейнес

Savitsky

et al. 2017

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

Static and dynamic magnetic properties of a [Fe(35 Å)/Gd(50 Å)] 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.

show abstract