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Hybrid modes in the antiferromagnet|ferromagnet heterostructure
Russian version
Meshcheryakov A. A.1,2, Safin A. R.1,2,3,4, Kalyabin D. V.1,2,4, Nikitov S. A.1,2,5
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
4National Research University Higher School of Economics, Moscow, Russia
5Laboratory "Magnetic Metamaterials", Saratov State University, Saratov, Russia
Email: AL.Meshcheryakov@gmail.com
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The phenomenon of mode hybridization in the exchange-coupled two-layer antiferromagnet|ferromagnet structure has been theoretically investigated. Expressions describing the dependence of the resonant frequencies of magnetization oscillations on the external magnetic field have been obtained by the method of Hamiltonian formalism. The effect of the coupling strength between the ferro- and antiferromagnetic layers on the width of the anti-crossing gap and on the magnitude of the external magnetic field at which hybridization is observed has been investigated. Keywords: spintronics, ferromagnetic resonance, antiferromagnetic resonance, films, Hamiltonian formalism.
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