Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry

P. Steinmetz, A. Ehrmann, Condensed Matter 6 (2021).

Artikel | Veröffentlicht | Englisch
Autor*in
Steinmetz, Pia; Ehrmann, AndreaFH Bielefeld
Abstract
Magnetic nanodots are of high interest for basic research due to their broad spectrum of possible magnetic states and magnetization reversal processes. Besides, they are of technological interest since they can be applied in magnetic data storage, especially if vortex states occur in closed dots or open rings. While producing such nanorings and nanodots from diverse magnetic materials by lithographic techniques is quite common nowadays, these production technologies are naturally prone to small deviations of the borders of these nanoparticles. Here we investigate the influence of well-defined angular-dependent roughness of the edges, created by building the nanoparticles from small cubes, on the resulting hysteresis loops and magnetization reversal processes in five different round nanodots with varying open areas, from a thin ring to a closed nanodot. By varying the orientation of the external magnetic field, the impact of the angle-dependent roughness can be estimated. Especially for the thinnest ring, significant dependence of the transverse magnetization component on the field orientation can be found.
Erscheinungsjahr
Zeitschriftentitel
Condensed Matter
Band
6
Zeitschriftennummer
2
Artikelnummer
19
eISSN
FH-PUB-ID

Zitieren

Steinmetz, Pia ; Ehrmann, Andrea: Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry. In: Condensed Matter Bd. 6, MDPI AG (2021), Nr. 2
Steinmetz P, Ehrmann A. Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry. Condensed Matter. 2021;6(2). doi:10.3390/condmat6020019
Steinmetz, P., & Ehrmann, A. (2021). Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry. Condensed Matter, 6(2). https://doi.org/10.3390/condmat6020019
@article{Steinmetz_Ehrmann_2021, title={Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry}, volume={6}, DOI={10.3390/condmat6020019}, number={219}, journal={Condensed Matter}, publisher={MDPI AG}, author={Steinmetz, Pia and Ehrmann, Andrea}, year={2021} }
Steinmetz, Pia, and Andrea Ehrmann. “Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry.” Condensed Matter 6, no. 2 (2021). https://doi.org/10.3390/condmat6020019.
P. Steinmetz and A. Ehrmann, “Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry,” Condensed Matter, vol. 6, no. 2, 2021.
Steinmetz, Pia, and Andrea Ehrmann. “Micromagnetic Simulation of Round Ferromagnetic Nanodots with Varying Roughness and Symmetry.” Condensed Matter, vol. 6, no. 2, 19, MDPI AG, 2021, doi:10.3390/condmat6020019.
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