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

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

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 text...

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Main Authors: K. J. A. Franke, P. R. Dean, M. Ciomaga Hatnean, M. T. Birch, D. D. Khalyavin, P. Manuel, T. Lancaster, G. Balakrishnan, P. D. Hatton
Format: Article
Language:English
Published: AIP Publishing LLC 2019-12-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.5129400
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spelling doaj-09a87361f8fb45fc9758dd67bfd9e62d2020-11-25T02:55:44ZengAIP Publishing LLCAIP Advances2158-32262019-12-01912125228125228-610.1063/1.5129400Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffractionK. J. A. Franke0P. R. Dean1M. Ciomaga Hatnean2M. T. Birch3D. D. Khalyavin4P. Manuel5T. Lancaster6G. Balakrishnan7P. D. Hatton8Centre for Materials Physics, Durham University, Durham DH1 3LE, United KingdomCentre for Materials Physics, Durham University, Durham DH1 3LE, United KingdomUniversity of Warwick, Department of Physics, Coventry CV4 7AL, United KingdomCentre for Materials Physics, Durham University, Durham DH1 3LE, United KingdomISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United KingdomISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United KingdomCentre for Materials Physics, Durham University, Durham DH1 3LE, United KingdomUniversity of Warwick, Department of Physics, Coventry CV4 7AL, United KingdomCentre for Materials Physics, Durham University, Durham DH1 3LE, United KingdomWe 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.http://dx.doi.org/10.1063/1.5129400
collection DOAJ
language English
format Article
sources DOAJ
author K. J. A. Franke
P. R. Dean
M. Ciomaga Hatnean
M. T. Birch
D. D. Khalyavin
P. Manuel
T. Lancaster
G. Balakrishnan
P. D. Hatton
spellingShingle K. J. A. Franke
P. R. Dean
M. Ciomaga Hatnean
M. T. Birch
D. D. Khalyavin
P. Manuel
T. Lancaster
G. Balakrishnan
P. D. Hatton
Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
AIP Advances
author_facet K. J. A. Franke
P. R. Dean
M. Ciomaga Hatnean
M. T. Birch
D. D. Khalyavin
P. Manuel
T. Lancaster
G. Balakrishnan
P. D. Hatton
author_sort K. J. A. Franke
title Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
title_short Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
title_full Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
title_fullStr Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
title_full_unstemmed Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
title_sort investigating the magnetic ground state of the skyrmion host material cu2oseo3 using long-wavelength neutron diffraction
publisher AIP Publishing LLC
series AIP Advances
issn 2158-3226
publishDate 2019-12-01
description 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.
url http://dx.doi.org/10.1063/1.5129400
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