Control of magnetoelastic waves in structure containing thin antiferromagnetic films on an elastic substrate
Bogdanova T. V.1,2, Kalyabin D. V. 1,2, Safin A. R.1,3, Nikitov S. A. 1,2,4
1Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
2Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region, Russia
3National Research University «Moscow Power Engineering Institute», Moscow, Russia
4Saratov State University, Saratov, Russia
Email: bogdanova.tv@phystech.edu, dmitry.kalyabin@phystech.edu, arsafin@gmail.com, nikitov@cplire.ru

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In this work we present a model explaining the properties of magnetoelastic waves propagation in the heterostructure containing an antiferromagnetic layer on a non-magnetic elastic substate. The dispersion characteristic of magnetoelastic waves in such structure was obtained, and the effect of variation of the thickness of the antiferromagnetic layer and the external magnetic field on the frequency of the magnetoelastic resonance on the elastic structure was also studied. It was found that an increase in the magnetic field magnitude leads to the increase with pressure of the magnetoelastic resonance frequency, and, on the contrary, with an increase in the thickness of the AFM layer the magnitude of the magnetoelastic resonance frequency decreases. The results obtained can be used to create devices for generating and processing signals in the gigahertz and terahertz frequency ranges Keywords: spin waves, Love waves, magnetoelastic resonance, sigma model, films, pressure. DOI: 10.61011/PSS.2023.07.56398.26H
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