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Authors: Zázvorka, Jakub
Dittrich, Florian
Ge, Yuqing
Kerber, Nico
Raab, Klaus
Winkler, Thomas
Litzius, Kai
Veis, Martin
Virnau, Peter
Kläui, Mathias
Title: Skyrmion lattice phases in thin film multilaye
Online publication date: 30-Nov-2020
Language: english
Abstract: Phases of matter are ubiquitous with everyday examples including solids and liquids. In reduced dimensions, particular phases, such as the 2D hexatic phase and corresponding phase transitions occur. A particularly exciting example of 2D ordered systems are skyrmion lattices, where in contrast to previously studied 2D colloid systems, the skyrmion size and density can be tuned by temperature and magnetic fields. This allows for the system to be driven from a liquid phase to the onset of a hexatic phase as deduced from the analysis of the hexagonal order. Using coarse-grained molecular dynamics simulations of soft disks, the skyrmion interaction potentials are determined, and it is found that the simulations are able to reproduce the phase behavior. This shows that not only the static behavior of skyrmions is qualitatively well described in terms of a simple 2D model system but skyrmion lattices are versatile and tunable 2D model systems that allow for studying phases and phase transitions in reduced dimensions.
DDC: 530 Physik
530 Physics
Institution: Johannes Gutenberg-Universität Mainz
Department: FB 08 Physik, Mathematik u. Informatik
Place: Mainz
Version: Published version
Publication type: Zeitschriftenaufsatz
Document type specification: Scientific article
License: CC-BY
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Journal: Advanced functional materials
Pages or article number: Art. 2004037
Publisher: Wiley-VCH
Publisher place: Weinheim
Issue date: 2020
ISSN: 1616-301X
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Appears in collections:JGU-Publikationen

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