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Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction

Franke, K.J.A.; Dean, P.R.; Hatnean, M. Ciomaga; Birch, M.T.; Khalyavin, D.D.; Manuel, P.; Lancaster, T.; Balakrishnan, G.; Hatton, P.D.

Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction Thumbnail


Authors

K.J.A. Franke

P.R. Dean

M. Ciomaga Hatnean

M.T. Birch

D.D. Khalyavin

P. Manuel

G. Balakrishnan

P.D. Hatton



Abstract

We present long-wavelength neutron diffraction data measured on both single crystal and polycrystalline samples of the skyrmion host material Cu2OSeO3. We observe magnetic satellites around the (01⎯⎯1) diffraction peak not accessible to other techniques, and distinguish helical from conical spin textures in reciprocal space. Our measurements show that not only the field-polarised phase but also the helical ground state are made up of ferrimagnetic clusters instead of individual spins. These clusters are distorted Cu tetrahedra, where the spin on one Cu ion is anti-aligned with the spin on the three other Cu ions.

Citation

Franke, K., Dean, P., Hatnean, M. C., Birch, M., Khalyavin, D., Manuel, P., …Hatton, P. (2019). Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction. AIP Advances, 9(12), Article 125228. https://doi.org/10.1063/1.5129400

Journal Article Type Article
Acceptance Date Nov 18, 2019
Online Publication Date Dec 23, 2019
Publication Date Dec 23, 2019
Deposit Date Jan 6, 2020
Publicly Available Date Jan 8, 2020
Journal AIP Advances
Publisher American Institute of Physics
Peer Reviewed Peer Reviewed
Volume 9
Issue 12
Article Number 125228
DOI https://doi.org/10.1063/1.5129400
Public URL https://durham-repository.worktribe.com/output/1280077

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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© Author(s) 2019. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).






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