XXVI International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 14 - March 17, 2022
Magnetism

Ferromagnetic resonance in exchange-coupled magnetic vortices

D. A. Tatarskii^ab, E. V. Skorokhodov^a, V. L. Mironov^a, S. A. Gusev<sup>a

a</sup> Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
^b National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia

Abstract: The results of a study of low-frequency ferromagnetic resonance in a system of two overlapping permalloy disks by magnetic resonance force spectroscopy are presented. It is shown that the resonant frequency of the gyrotropic mode of oscillations of magnetic vortices in this system significantly depends on the vorticity of their shells. The experimental dependences of the resonant frequencies of various states on the external magnetic field are qualitatively consistent with the results of micromagnetic modeling.

Keywords: ferromagnetic resonance, magnetic resonance force spectroscopy, magnetic vortices.

Received: 29.04.2022
Revised: 29.04.2022
Accepted: 12.05.2022

DOI: 10.21883/FTT.2022.09.52829.40HH

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