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Keywords = Parallel Finite Element Micromagnetics Package (Magpar)

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13 pages, 11462 KiB  
Article
Influence of Physical Symmetries on the Magnetization Dynamics in Magnetic Fibers
by Tomasz Blachowicz, Pawel Steblinski and Andrea Ehrmann
Symmetry 2023, 15(1), 234; https://doi.org/10.3390/sym15010234 - 13 Jan 2023
Viewed by 2178
Abstract
Magnetic nanofibers belong to the geometries which are intensively investigated in simulations and experiments due to their unique magnetic properties, varying in their lengths, cross-sections, and bending radii. Besides basic research of different magnetization reversal processes and magnetization dynamics in bent nanofibers, these [...] Read more.
Magnetic nanofibers belong to the geometries which are intensively investigated in simulations and experiments due to their unique magnetic properties, varying in their lengths, cross-sections, and bending radii. Besides basic research of different magnetization reversal processes and magnetization dynamics in bent nanofibers, these structures are of potential interest for data storage applications, data transport, or other tasks in spintronics devices. While previous simulations concentrated on the domain wall transport through coupled bent nanofibers, creating networks with many in- and outputs to establish nanofiber-based domain wall logics, here we show the influence of the constricted area, in which a rotating magnetic field is applied in the middle of bent or straight magnetic nanofibers, on the magnetization dynamics. Our micromagnetic simulations, performed by Magpar, reveal a strong impact not only of this area, but also of the curvature of the nanofiber as well as of an additional Dzyaloshinskii–Moriya interaction (DMI). Full article
(This article belongs to the Special Issue Chiral Symmetry and Spin Dynamics)
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