Magnetization structure of a Bloch point singularity

Details Magnetization structure of a Bloch point singularity Magnetization structure of a Bloch point singularity

2010-10-13

arxiv.org/abs/1010.2593v1

Eur. Phys. J. B 82, 159--166 (2011)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, 2 figures

Scientific paper

10.1140/epjb/e2011-20146-6

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.

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