Magnetism in the Néel-skyrmion host GaV4 S8 under pressure. / Hicken, T. J.; Wilson, M. N.; Holt, S. J.R.; Khassanov, R.; Lees, M. R.; Gupta, R.; Das, D.; Balakrishnan, G.; Lancaster, T.

In: Physical Review B, Vol. 105, No. 13, 01.04.2022.

Research output: Contribution to journalArticlepeer-review

  • T. J. Hicken
  • M. N. Wilson
  • S. J.R. Holt
  • R. Khassanov
  • M. R. Lees
  • R. Gupta
  • D. Das
  • G. Balakrishnan
  • T. Lancaster


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.
Original languageEnglish
JournalPhysical Review B
Issue number13
Publication statusPublished - 1 Apr 2022
This open access research output is licenced under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.

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