Magnetic vortices in media with spatially inhomogeneous exchange interaction
A. S. Kovalev
B. I. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine Kharkiv 61103, Ukraine V. N. Karazin Kharkiv National University, Kharkiv 61022, Ukraine
Received April 5, 2021, published online July 26, 2021
In the framework of the classical equations for the magnetization dynamics and the collective variables approximation, the dynamics of magnetic vortices in two-dimensional ferromagnets with the easy-plane anisotropy and spatially inhomogeneous exchange interaction is considered. In the case of a wide straight line of the interface between magnetic media with different but slightly different exchange interaction, the dependence of the magnetic vortex velocity on its distance to the structure defect and position inside the interface domain is obtained.
Key words: easy-plane ferromagnet, inhomogeneous magnetic media, magnetic defects, magnetic vortex, Thiele and Sonin equations.