Magnetization structure of a Bloch point singularity

Abstract

Switching of magnetic vortex cores involves a topological transition characterized by the presence of a magnetization singularity, a point where the magnetization vanishes (Bloch point). We analytically derive the shape of the Bloch point that is an extremum of the free energy with exchange, dipole and the Landau terms for the determination of the local value of the magnetization modulus.

4 pages, 2 figures

References in corpus (2)

• Electrical switching of vortex core in a magnetic disk
• Vortices in thin ferromagnetic films and the skyrmion number

Cited by in corpus (16)

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• Micromagnetic modelling of magnetic domain walls in curved cylindrical nanotubes and nanowires
• Multiscale Model Approach for Magnetization Dynamics Simulations
• Numerical micromagnetism of strong inhomogeneities
• Spin waves scattering on a Bloch point
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• Bloch point nanospheres for the design of magnetic traps
• Hyperbolic Bloch points in ferrimagnetic exchange spring
• Regularized Micromagnetic Theory for Bloch Points
• Simulating Bloch points using micromagnetic and Heisenberg models