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Physics of nanostructures
Ferromagnetic resonance for electromagnetic waves passing through metal superlattices
A. B. Rinkevich, E. A. Kuznetsov, D. V. Perov, M. A. Milyaev, L. N. Romashev Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
Abstract:
Ferromagnetic-resonance-induced variations in the transmittance of Fe films and Fe/Cr superlattices are studied in a microwave frequency interval of 26–38 GHz. The shape of the resonance line is described using a model in which the asymmetry is provided by a Lorentzian dispersion curve added to the absorption curve. It is shown that the line shape is well described using the model for superlattices with continuous Fe and Cr layers and Fe films. However, only qualitative agreement is obtained for superlattices with thin Fe and Cr layers. The experimental field dependence of the transmission coefficient substantially differs from the model results in the presence of the fields that are less than the field of ferromagnetic resonance for superlattices with giant magnetoresistance.
Keywords:
metallic superlattices, ferromagnetic resonance, microwave giant magnetoresistive effect.
Received: 21.07.2020 Revised: 17.12.2020 Accepted: 17.12.2020
Citation:
A. B. Rinkevich, E. A. Kuznetsov, D. V. Perov, M. A. Milyaev, L. N. Romashev, “Ferromagnetic resonance for electromagnetic waves passing through metal superlattices”, Zhurnal Tekhnicheskoi Fiziki, 91:6 (2021), 997–1008; Tech. Phys., 66:8 (2021), 917–928
Linking options:
https://www.mathnet.ru/eng/jtf4997 https://www.mathnet.ru/eng/jtf/v91/i6/p997
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Abstract page: | 37 | Full-text PDF : | 34 |
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