Impact of magnetic resonance force microscope probe on gyrotropic mode of magnetic vortex oscillations

We study the influence of magnetic resonance force microscope (MRFM) probe on the low frequency magnetization oscillations in a single permalloy disk connected with gyrotropic motion of magnetic vortex core. It is shown that the resonant frequency of gyrotropic mode can be tuned over a wide range by...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2022-06, Vol.552, p.169152, Article 169152
Main Authors: Tatarskiy, D.A., Mironov, V.L., Skorokhodov, E.V., Fraerman, A.A.
Format: Article
Language:English
Subjects:
Ferromagnetic resonance
Ferrous alloys
Gyrotropic mode
Magnetic alloys
Magnetic moments
Magnetic resonance
Magnetic resonance force microscope
Magnetic vortex
Oscillations
Resonant frequencies
Vortices
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Summary:We study the influence of magnetic resonance force microscope (MRFM) probe on the low frequency magnetization oscillations in a single permalloy disk connected with gyrotropic motion of magnetic vortex core. It is shown that the resonant frequency of gyrotropic mode can be tuned over a wide range by changing the distance between the probe and the sample. The possibility of switching the vortex core polarity under the action of the field of MRFM probe with large magnetic moment is demonstrated. The experimental data are analyzed using micromagnetic simulations and simple analytical models. •Magnetic resonance force microscope (MRFM) as a tool for magnetic vortex manipulating.•Tuning of gyrotropic mode resonant frequency by MRFM tip.•MRFM switching of magnetic vortex core polarity.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2022.169152