|
This article is cited in 3 scientific papers (total in 3 papers)
Dynamics of domain walls in a cylindrical amorphous ferromagnetic microwire with magnetic inhomogeneities
S. B. Leble, V. V. Rodionova Immanuel Kant Baltic Federal University, Kaliningrad,
Russia
Abstract:
We study the dynamics of a domain wall ($DW$) in the magnetic core of thin amorphous glass-coated bistable microwires with a circular cross section containing longitudinal inhomogeneities. We use a systematic analytic approach to the problem of finding particular solutions of the continuous Heisenberg model for which we use Landau–Lifshitz–Gilbert equations. We establish a relation between the structure of a material including defects and the DW mobility that explains some experimental data. For a given defect distribution in the longitudinal direction, we study the influence of defects on DW propagation in bistable glass-coated microwires. We obtain new key formulas for the DW velocity and acceleration based on taking the average defect distribution into account.
Keywords:
Landau–Lifshitz–Gilbert equation, amorphous microwire, magnetic domain walls, anisotropy coefficient, magnetic inhomogeneity.
Received: 05.09.2019 Revised: 05.09.2019
Citation:
S. B. Leble, V. V. Rodionova, “Dynamics of domain walls in a cylindrical amorphous ferromagnetic microwire with magnetic inhomogeneities”, TMF, 202:2 (2020), 290–303; Theoret. and Math. Phys., 202:2 (2020), 252–264
Linking options:
https://www.mathnet.ru/eng/tmf9816https://doi.org/10.4213/tmf9816 https://www.mathnet.ru/eng/tmf/v202/i2/p290
|
Statistics & downloads: |
Abstract page: | 253 | Full-text PDF : | 55 | References: | 21 | First page: | 13 |
|