Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-5943
Authors: | Song, Chengkun Kerber, Nico Rothörl, Jan Ge, Yuqing Raab, Klaus Seng, Boris Brems, Maarten A. Dittrich, Florian Reeve, Robert M. Wang, Jianbo Liu, Qingfang Virnau, Peter Kläui, Mathias |
Title: | Commensurability between element symmetry and the number of skyrmions governing skyrmion diffusion in confined geometries |
Online publication date: | 2-Jun-2021 |
Year of first publication: | 2021 |
Language: | english |
Abstract: | Magnetic skyrmions are topological magnetic structures, which exhibit quasi-particle properties and can show enhanced stability against perturbation from thermal noise. Recently, thermal Brownian diffusion of these quasi-particles has been found in continuous films, and unconventional computing applications have received significant attention, requiring structured elements. Thus, as the next necessary step, skyrmion diffusion in confined geometries is studied, and it is found to be qualitatively different: The diffusion is governed by the interplay between the total number of skyrmions and the structure geometry. In particular, the effect of circular and triangular geometrical confinement is ascertained. It is found that for triangular geometries, the behavior is drastically different for the cases when the number of skyrmions in the element is either commensurate or incommensurate with a symmetric filling of the element. This influence of commensurability is corroborated by simulations of a quasi-particle model. |
DDC: | 530 Physik 530 Physics |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 08 Physik, Mathematik u. Informatik |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-5943 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
Document type specification: | Scientific article |
License: | CC BY-NC-ND |
Information on rights of use: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Journal: | Advanced functional materials 31 19 |
Pages or article number: | 2010739 |
Publisher: | Wiley-VCH |
Publisher place: | Weinheim |
Issue date: | 2021 |
ISSN: | 1616-301X |
Publisher URL: | https://doi.org/10.1002/adfm.202010739 |
Publisher DOI: | 10.1002/adfm.202010739 |
Appears in collections: | JGU-Publikationen |
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song_chengkun-commensurabili-20210519153043449.pdf | 880.94 kB | Adobe PDF | View/Open |