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Digital
Library of the European Council for Modelling and Simulation |
Title: |
Effect of impurities on stability of the skyrmion phase in a frustrated Heisenberg antiferromagnet |
Authors: |
Mariia Mohylna, Milan Zukovic |
Published in: |
(2022). ECMS 2022,
36th Proceedings DOI: http://doi.org/10.7148/2022 ISSN:
2522-2422 (ONLINE) ISSN:
2522-2414 (PRINT) ISSN:
2522-2430 (CD-ROM) ISBN: 978-3-937436-77-7 Communications of the ECMS , Volume 36, Issue 1, June 2022, Ă…lesund, Norway May 30th - June 3rd, 2022 |
Citation
format: |
Mariia Mohylna, Milan Zukovic (2022). Effect of impurities on stability of the skyrmion phase in a frustrated Heisenberg antiferromagnet, ECMS 2022 Proceedings Edited By: Ibrahim A. Hameed, Agus Hasan, Saleh Abdel-Afou Alaliyat, European Council for Modeling and Simulation. doi:10.7148/2022-0331 |
DOI: |
https://doi.org/10.7148/2022-0331 |
Abstract: |
We employ a hybrid Monte Carlo simulation implemented on GPU to study the effect of nonmagnetic impurities in a frustrated Heisenberg antiferromagnetic (AFM) model on a triangular lattice with Dzyaloshinskii-Moriya interaction in the presence of the external magnetic field. We focus on the skyrmion lattice phase (SkX), which in the pure model is known to be stabilized in a quite wide temperature-field window. We aim to confront the effect of impurities on the SkX phase in the present frustrated AFM model with that in the nonfrustrated ferromagnetic counterpart as well as to consider more realistic conditions in the proposed experimental realizations of the present model. We show, that up to a fairly large concentration of the impurities, p ~35%, the SkX phase can survive albeit in somewhat distorted form. Distortion of the SkX phase due to formation of bimerons, reported in the ferromagnetic model, was not observed in the present case. |
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