Schick, Daniel and Matthies, Tim and Mutschler, Thomas and Rózsa, Levente and Nowak, Ulrich (2026) Anisotropic skyrmion liquid phase. PHYSICAL REVIEW RESEARCH, 8 (2). No. 023145. ISSN 2643-1564
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PhysRevResearch.8.023145.pdf - Published Version Available under License Creative Commons Attribution. Download (5MB) | Preview |
Abstract
The nature of the melting transition in two-dimensional systems of particles has attracted considerable research attention since the development of Kosterlitz-Thouless-Halperin-Nelson-Young theory. The hexatic phase proposed by this theory has been recently identified experimentally in ensembles of magnetic skyrmions, quasiparticles formed in a magnetically ordered crystal. Here, we use quasiparticle dynamical simulations to study how the anisotropy of the skyrmion-skyrmion interactions induced by the atomic lattice influences the melting transition. For isotropic interactions, we find a transition from a solid phase through a hexatic phase stable in a narrow temperature range to an isotropic liquid phase. However, if the interactions between skyrmions are forced to be anisotropic by the atomic lattice, then a direct solid-liquid transition can be observed with orientational order persisting up to temperatures of 30 K in the liquid phase.
| Item Type: | Article |
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| Additional Information: | Funding Agency and Grant Number: Quantum Information National Laboratory of Hungary [2022-2.1.1-NL-2022-00004]; Hungarian Academy of Sciences [BO/00178/23/11] Funding text: We would like to thank Markus Weissenhofer and Elena Y. Vedmedenko for fruitful discussions. We acknowledge funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) via SFB 1432 and Projects No. 403502522 and No. 514141286, by the National Research, Development, and Innovation Office (NRDI) of Hungary under Project No. FK142601 and No. ADVANCED 149745, by the Ministry of Culture and Innovation and the National Research, Development and Innovation Office withinthe Quantum Information National Laboratory of Hungary (Grant No. 2022-2.1.1-NL-2022-00004) , and by the Hungarian Academy of Sciences via a Janos Bolyai Research Grant (Grant No. BO/00178/23/11) . We are grateful for the computational support and resources provided by the Scientific Compute Cluster of University of Konstanz (SCCKN) for the simulations of the skyrmion lattices. |
| Subjects: | Q Science / természettudomány > QC Physics / fizika |
| SWORD Depositor: | MTMT SWORD |
| Depositing User: | MTMT SWORD |
| Date Deposited: | 14 Sep 2026 11:36 |
| Last Modified: | 14 Sep 2026 11:36 |
| URI: | https://real.mtak.hu/id/eprint/246222 |
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