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Updated: Jun 21, 2025

Fabrication of Magnetic Nanostructures on Silicon Nitride Membranes for Magnetic Vortex Studies Using Transmission Microscopy Techniques
Published on: July 2, 2018
Features of magnetic structures in perforated films due to the finite thickness of the sample
Eugene Magadeev1, Robert Vakhitov1, Raushan Kanbekov1
1Laboratory of Design of New Materials, Ufa University of Science and Technology, Ufa, Russia.
Abstract:
The paper examines ferromagnetic films with strong uniaxial anisotropy of the 'easy plane' type, in which vortex-like inhomogeneities can arise in the presence of artificially created perforations. A universal approach has been developed that makes it possible to reduce the problem of calculating demagnetizing fields in a film of arbitrary thickness to the simplest case, when the film thickness is large. It has been shown that the influence of demagnetizing fields causes the magnetization vector to necessarily move out of the sample plane, and the spatial distribution of magnetization corresponding to this effect has been studied. It has been revealed that the contribution of demagnetizing fields to the total energy of the magnet changes slightly during the transition from a homogeneous structure to an inhomogeneous one.
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