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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2023, Volume 118, Issue 9, Pages 677–682
DOI: https://doi.org/10.31857/S1234567823210085 (Mi jetpl7078) 		 
CONDENSED MATTER

Specific features of Bragg resonances in a magnonic crystal with two periods

M. A. Morozovaa, O. V. Matveeva, A. S. Ptashenkoa, A. V. Sadovnikova, S. A. Nikitovab

a Saratov State University, Saratov, 410012 Russia
b Kotelnikov Institute of Radioengineering and Electronics, Russian Academy of Sciences, Moscow, 125009 Russia
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DOI: https://doi.org/10.31857/S1234567823210085
Abstract: Specific features of Bragg resonances in a magnonic crystal with a metallic grating on the surface with two periods have been revealed. A theoretical model describing the spectral characteristics of magnetostatic waves has been constructed by matching the permeabilities of the metal layer and the ferromagnetic film at the interface between them and using the coupled-wave analysis. The distribution of the magnetization amplitude at each Bragg resonance frequency has been calculated by the finite-element method. It has been shown that three Bragg resonances in the first Brillouin zone for the grating with a smaller period and one resonance in the first Brillouin zone for the grating with a larger period are formed in this structure. Resonance frequencies are determined by the ratio of the large and small periods.
Funding agency Grant number
Russian Science Foundation 23-79-30027
This study was supported by the Russian Science Foundation (project no. 23-79-30027).
Received: 03.08.2023
Revised: 02.10.2023
Accepted: 04.10.2023
English version:
Journal of Experimental and Theoretical Physics Letters, 2023, Volume 118, Issue 9, Pages 664–669
DOI: https://doi.org/10.1134/S0021364023603081
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: M. A. Morozova, O. V. Matveev, A. S. Ptashenko, A. V. Sadovnikov, S. A. Nikitov, “Specific features of Bragg resonances in a magnonic crystal with two periods”, Pis'ma v Zh. Èksper. Teoret. Fiz., 118:9 (2023), 677–682; JETP Letters, 118:9 (2023), 664–669
Citation in format AMSBIB
\Bibitem{MorMatPta23}
\by M.~A.~Morozova, O.~V.~Matveev, A.~S.~Ptashenko, A.~V.~Sadovnikov, S.~A.~Nikitov
\paper Specific features of Bragg resonances in a magnonic crystal with two periods
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2023
\vol 118
\issue 9
\pages 677--682
\mathnet{http://mi.mathnet.ru/jetpl7078}
\crossref{https://doi.org/10.31857/S1234567823210085}
\edn{https://elibrary.ru/tbount}
\transl
\jour JETP Letters
\yr 2023
\vol 118
\issue 9
\pages 664--669
\crossref{https://doi.org/10.1134/S0021364023603081}
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