Behavior of Vortex-Like Inhomogeneities Originating in Magnetic Films with Modulated Uniaxial Anisotropy in a Planar Magnetic Field

This paper investigates the processes of magnetization reversal of a uniaxial ferromagnetic disk containing a columnar defect of the potential well type in perpendicular and planar magnetic fields. The characteristic stages of magnetization reversal of the domain structure of the disk and vortex-lik...

Full description

Bibliographic Details
Main Authors: Robert M. Vakhitov, Rostislav V. Solonetsky, Aygul A. Akhmetova, Mikhail A. Filippov
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Symmetry
Subjects:
Online Access:https://www.mdpi.com/2073-8994/14/3/612
Description
Summary:This paper investigates the processes of magnetization reversal of a uniaxial ferromagnetic disk containing a columnar defect of the potential well type in perpendicular and planar magnetic fields. The characteristic stages of magnetization reversal of the domain structure of the disk and vortex-like inhomogeneities forming on the defect are determined. The critical fields of their existence are found and an explanation is given for the presence of a significant difference in their values for the perpendicular and planar fields of the defect magnetization reversal. The role of chirality in the behavior of a Bloch-type magnetic skyrmion during the magnetization reversal of a defect in a planar field is shown.
ISSN:2073-8994