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Magnetism in the Néel-skyrmion host GaV4S8 under pressure
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Hicken, T. J., Wilson, M. N., Holt, S. J. R., Khassanov, R., Lees, M. R., Gupta, R., Das, D., Balakrishnan, G. and Lancaster, T. (2022) Magnetism in the Néel-skyrmion host GaV4S8 under pressure. Physical Review B, 105 (13). 134414. doi:10.1103/PhysRevB.105.134414 ISSN 2469-9950.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.105.134414
Abstract
We present magnetization and muon-spin spectroscopy measurements of Néel-skyrmion host GaV4S8 under the application of hydrostatic pressures up to P = 2.29 GPa. Our results suggest that the magnetic phase diagram is altered with pressure via a reduction in the crossover temperature from the cycloidal (C) to ferromagnetic-like state with increasing P, such that, by 2.29 GPa, the C state appears to persist down to the lowest measured temperatures. With the aid of micromagnetic simulations, we propose that the driving mechanism behind this change is a reduction in the magnetic anisotropy of the system, and suggest that this could lead to an increase in stability of the skyrmion lattice.
Item Type: | Journal Article | |||||||||
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Subjects: | Q Science > QC Physics | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
Library of Congress Subject Headings (LCSH): | Skyrme model, Muon spin rotation, Magnetism, Magnetic materials | |||||||||
Journal or Publication Title: | Physical Review B | |||||||||
Publisher: | American Physical Society | |||||||||
ISSN: | 2469-9950 | |||||||||
Official Date: | 13 April 2022 | |||||||||
Dates: |
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Volume: | 105 | |||||||||
Number: | 13 | |||||||||
Number of Pages: | 8 | |||||||||
Article Number: | 134414 | |||||||||
DOI: | 10.1103/PhysRevB.105.134414 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Restricted or Subscription Access | |||||||||
Copyright Holders: | American Physical Society | |||||||||
Date of first compliant deposit: | 25 April 2022 | |||||||||
Date of first compliant Open Access: | 25 April 2022 | |||||||||
RIOXX Funder/Project Grant: |
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