Journal
JOURNAL OF SURFACE INVESTIGATION
Volume 1, Issue 4, Pages 466-470Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1027451007040180
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Funding
- Russian Foundation for Basic Research [05-02-17153]
- Quantum Structures of the Presidium of the Russian Academy of Sciences
- Federal Agency on Science and Innovations of the Russian Federation [02.434.11.7114]
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The interaction of a magnetic vortex in a circular ferromagnetic nanoparticle with the probe field of a magnetic force microscope (MFM) is theoretically investigated. In the calculations, the probe field is approximated by the point dipole field. The rigid magnetic vortex model is used to describe the vortex state of magnetization. It is found that the effect of the probe field on the rigid magnetic vortex shell is similar to the effect of a uniform magnetic field parallel to the particle plane. The effect of the Z component of the probe field on the core of the vortex results in mutual probe-vortex attraction or repulsion. It is shown that the magnetization direction of the core of the vortex in the MFM probe field can be changed without a change in the shell vorticity direction.
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