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Investigation of the magnetic ground state of GaV4S8 using powder neutron diffraction
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Holt, S. J. R., Ritter, C., Lees, Martin R. and Balakrishnan, Geetha (2021) Investigation of the magnetic ground state of GaV4S8 using powder neutron diffraction. Journal of Physics: Condensed Matter, 33 (25). 255802. doi:10.1088/1361-648X/abf9bb ISSN 0953-8984.
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WRAP-Investigation-magnetic-ground-state-GaV4S8-powder-neutron-2021.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution 4.0. Download (2045Kb) | Preview |
Official URL: http://dx.doi.org/10.1088/1361-648X/abf9bb
Abstract
The magnetic ground state of polycrystalline Neel skyrmion hosting material GaV4S8 has been investigated using ac susceptibility and powder neutron diffraction. In the absence of an applied magnetic field GaV4S8 undergoes a transition from a paramagnetic to a cycloidal state below 13 K and then to a ferromagnetic-like state below 6 K. With evidence from ac susceptibility and powder neutron diffraction, we have identified the commensurate magnetic structure at 1.5 K, with ordered magnetic moments of 0.23(2) μB on the V1 sites and 0.22(1) μB on the V2 sites. These moments have ferromagnetic-like alignment but with a 39(8)◦ canting of the magnetic moments on the V2 sites away from the V4 cluster. In the incommensurate magnetic phase that exists between 6 and 13 K, we provide a thorough and careful analysis of the cycloidal magnetic structure exhibited by this material using powder neutron diffraction.
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 , Neutrons -- Diffraction, Powders -- Optical properties, Magnetic materials, Magnetism | ||||||||
Journal or Publication Title: | Journal of Physics: Condensed Matter | ||||||||
Publisher: | Institute of Physics Publishing Ltd | ||||||||
ISSN: | 0953-8984 | ||||||||
Official Date: | 24 May 2021 | ||||||||
Dates: |
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Volume: | 33 | ||||||||
Number: | 25 | ||||||||
Article Number: | 255802 | ||||||||
DOI: | 10.1088/1361-648X/abf9bb | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||
Copyright Holders: | The Authors | ||||||||
Date of first compliant deposit: | 25 May 2021 | ||||||||
Date of first compliant Open Access: | 25 May 2021 | ||||||||
RIOXX Funder/Project Grant: |
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