The structure of magnetic domain walls in cylindrical nanoand microwires with inhomogeneous anisotropy
https://doi.org/10.17586/2220-8054-2024-15-1-55-59
Abstract
The structure of domain walls in cylindrical nanoand microwires with a non-uniform anisotropy distribution in the transverse-radial direction has been studied. This distribution can be controlled by mechanical stresses associated with specific wire manufacturing methods as well as with the glass coating in some types of microwires. Our calculations have shown that in the presence of axial anisotropy in the core of the wire and radial anisotropy near its surface, various configurations of domain walls can be stabilized. A diagram of magnetic states has been calculated depending on the radial anisotropy values. The stability of various types of domain walls and their possible transformation under the excitation of thermal fluctuations and external perturbations are discussed.
Keywords
Domain wall,
cylindrical systems,
amorphous ferromagnetic microwires,
mechanical stress,
micromagnetics
Supporting agencies: This work was funded by Russian Science Foundation (project No. 23-72-10028, https://rscf.ru/en/project/23-72-10028/). K.A.Ch. acknowledges the support of ITMO Fellowship Program
About the Authors
K. A. Chichay
ITMO University
Russian Federation
Russian Federation
Ksenia A. Chichay – Department of Physics.
St. Petersburg, 197101
I. S. Lobanov
ITMO University
Russian Federation
Russian Federation
Igor S. Lobanov – Department of Physics.
St. Petersburg, 197101
V. M. Uzdin
ITMO University
Russian Federation
Russian Federation
Valery M. Uzdin – Department of Physics.
St. Petersburg, 197101
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Review
For citations:
Chichay K.A., Lobanov I.S., Uzdin V.M. The structure of magnetic domain walls in cylindrical nanoand microwires with inhomogeneous anisotropy. Nanosystems: Physics, Chemistry, Mathematics. 2024;15(1):55-59. https://doi.org/10.17586/2220-8054-2024-15-1-55-59
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