Creating and detecting a magnetic bimeron by magnetic force microscope probe

•The initiation of a magnetic bimeron by an inhomogeneous field of a magnetic force microscope tip is numerically simulated.•Estimates of the possibility of detecting magnetic bimeron by the methods of magnetic force microscopy is done.•The contrast of the bimeron image in transmission Lorentz micro...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2022-05, Vol.549, p.169043, Article 169043
Main Authors: Sapozhnikov, M.V., Tatarskiy, D.A., Mironov, V.L.
Format: Article
Language:English
Subjects:
Hypothetical particles
Magnetic fields
Magnetic force microscopy
Magnetic resonance
Magnetic topological states
Magnetism
Magnetization reversal
Micronagnetic simulations
Microscopy
Particle theory
Thin films
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Summary:•The initiation of a magnetic bimeron by an inhomogeneous field of a magnetic force microscope tip is numerically simulated.•Estimates of the possibility of detecting magnetic bimeron by the methods of magnetic force microscopy is done.•The contrast of the bimeron image in transmission Lorentz microscope is calculated.•The ferromagnetic resonance spectrum of bimeron is calculated. A magnetic bimeron is a version of skyrmion, which is predicted for the in-plane magnetized thin films with interfacial Dzyaloshinskii-Moriya interaction. Here we theoretically investigate the possibility to create individual bimeron using stray field of magnetic force microscope (MFM) tip. We demonstrate that a local magnetization reversal of the film by localized MFM field in combination with an additional uniform perpendicular magnetic field enables the stable bimeron formation. The possibilities for detection of the bimeron by the methods of magnetic force microscopy, Lorentz transmission electron microscopy and magnetic resonance force spectroscopy are discussed.
ISSN:0304-8853
1873-4766
DOI:10.1016/j.jmmm.2022.169043