Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures

D. Sudsom, I. Juhász Junger, C. Döpke, T. Blachowicz, L. Hahn, A. Ehrmann, Condensed Matter 5 (2020).

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Artikel | Veröffentlicht | Englisch
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Sudsom, Devika; Juhász Junger, Irén; Döpke, Christoph; Blachowicz, Tomasz; Hahn, Lothar; Ehrmann, AndreaFH Bielefeld
Abstract
<jats:p>Magnetic vortex structures are of high technological relevance due to their possible application in magnetic memory. Moreover, investigating magnetization reversal via vortex formation is an important topic in basic research. Typically, such vortices are only investigated in homogeneous magnetic materials of diverse shapes. Here, we report for the first time on micromagnetic simulation of vortex formation in magnetic bow-tie nanostructures, comprising alternating parts from iron and permalloy, investigated for two different thicknesses and under different angles of the external magnetic field. While no vortex was found in pure permalloy square, nanoparticles of the dimensions investigated in this study and in case of iron only a relatively thick sample allowed for vortex formation, different numbers of vortices and antivortices were found in the bow-tie structures prepared from both materials, depending on the angular field orientation and the sample thickness. By stabilizing more than one vortex in a confined nanostructure, it is possible to store more than one bit of information in it. Our micromagnetic simulations reveal that such bi-material structures are highly relevant not only for basic research, but also for data storage applications.</jats:p>
Erscheinungsjahr
Zeitschriftentitel
Condensed Matter
Band
5
Zeitschriftennummer
1
Artikelnummer
5
ISSN
Finanzierungs-Informationen
Article Processing Charge funded by the Deutsche Forschungsgemeinschaft and the Open Access Publication Fund of LibreCat University.
FH-PUB-ID
635

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Sudsom, Devika ; Juhász Junger, Irén ; Döpke, Christoph ; Blachowicz, Tomasz ; Hahn, Lothar ; Ehrmann, Andrea: Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures. In: Condensed Matter Bd. 5 (2020), Nr. 1
Sudsom D, Juhász Junger I, Döpke C, Blachowicz T, Hahn L, Ehrmann A. Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures. Condensed Matter. 2020;5(1). doi:10.3390/condmat5010005
Sudsom, D., Juhász Junger, I., Döpke, C., Blachowicz, T., Hahn, L., & Ehrmann, A. (2020). Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures. Condensed Matter, 5(1). https://doi.org/10.3390/condmat5010005
@article{Sudsom_Juhász Junger_Döpke_Blachowicz_Hahn_Ehrmann_2020, title={Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures}, volume={5}, DOI={10.3390/condmat5010005}, number={15}, journal={Condensed Matter}, author={Sudsom, Devika and Juhász Junger, Irén and Döpke, Christoph and Blachowicz, Tomasz and Hahn, Lothar and Ehrmann, Andrea}, year={2020} }
Sudsom, Devika, Irén Juhász Junger, Christoph Döpke, Tomasz Blachowicz, Lothar Hahn, and Andrea Ehrmann. “Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures.” Condensed Matter 5, no. 1 (2020). https://doi.org/10.3390/condmat5010005.
D. Sudsom, I. Juhász Junger, C. Döpke, T. Blachowicz, L. Hahn, and A. Ehrmann, “Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures,” Condensed Matter, vol. 5, no. 1, 2020.
Sudsom, Devika, et al. “Micromagnetic Simulation of Vortex Development in Magnetic Bi-Material Bow-Tie Structures.” Condensed Matter, vol. 5, no. 1, 5, 2020, doi:10.3390/condmat5010005.
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2021-01-03T14:41:31Z


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