Contrast simulation in the phase shift dynamic magnetic force microscopy depending on the MFM probe geometry and materials

The gradient of the magnetic force caused by the interaction of various shapes magnetic nanoprobes with magnetic materials has been simulated. Because the force gradient is proportional to the phase shift in probe oscillations the data obtained allow us to compare the contrast of dynamic magnetic fo...

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Bibliographic Details
Published in:Journal of physics. Conference series 2019-12, Vol.1410 (1), p.12215
Main Authors: Zhukov, M V, Belousov, K I, Golubok, A O
Format: Article
Language:English
Subjects:
Aspect ratio
Image contrast
Magnetic fields
Magnetic force microscopy
Magnetic materials
Magnetism
Microscopy
Phase shift
Physics
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Summary:The gradient of the magnetic force caused by the interaction of various shapes magnetic nanoprobes with magnetic materials has been simulated. Because the force gradient is proportional to the phase shift in probe oscillations the data obtained allow us to compare the contrast of dynamic magnetic force microscopy images for probes with various shapes. A comparison of standard pyramidal probes and probes with cylinder-shaped nanowiskers with different aspect ratios has been carried out. The probes with optimal parameters such as the shape, the thickness and type of the magnetic coating giving the maximum phase shift and as a result giving the best quality visualization of magnetic fields on the sample surface in the phase shift mode have been selected.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1410/1/012215