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Measuring the Formation Energy Barrier of Skyrmions in Zinc Substituted Cu2OSeO3 [dataset] Open Access

We report small angle neutron scattering (SANS) measurements of the skyrmion lattice in (Cu0.976Zn0.024)2OSeO3 under the application of electric and magnetic fields. These measurements show an expansion of the skyrmion lattice stability region with electric field. Furthermore, using time-resolved SANS, we observe the slow formation of skyrmions after an electric or magnetic field is applied, which has not been observed in pristine Cu2OSeO3 crystals. The measured formation times are dramatically longer than the corresponding skyrmion annihilation times after the external field is removed, and increase exponentially from 100 s at 52.5 K to 10,000 s at 51.5 K. This thermally activated behavior indicates an energy barrier for skyrmion formation of 1.57(2) eV, the size of which demonstrates the huge cost for creating these complex chiral objects.

Descriptions

Resource type
Dataset
Contributors
Creator: Wilson, Murray N. 1
Contact person: Wilson, Murray N. 1
Creator: Crisanti, Marta 2
Creator: Barker, Christopher 1
Creator: Štefančič, Aleš 3
Creator: White, Jonathan S. 4
Creator: Birch, Max T. 1
Creator: Balakrishnan, Geetha 3
Creator: Cubitt, Robert 5
Creator: Hatton, Peter D. 1
1 Durham University, UK
2 Institut Laue-Langevin, France
3 University of Warwick, UK
4 Paul Scherrer Institut, Switzerland
5 Insitut Laue-Langevin, France
Funder
Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword
Skyrmion
Cu2OSeO3
Neutron
SANS
Subject
Skyrmion
Location
Language
Cited in
Identifier
ark:/32150/r26395w7101
doi:10.15128/r26395w7101
Rights
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA)

Publisher
Durham University
Date Created
17/05/2019

File Details

Depositor
M.N. Wilson
Date Uploaded
Date Modified
30 January 2020, 16:01:58
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File format: zip (ZIP Format)
Mime type: application/zip
File size: 2586703214
Last modified: 2020:01:30 16:57:49+00:00
Filename: DataCollection.zip
Original checksum: 0a6e01f6d1055c6fe3eba0b8fc821fa2
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User M.N. Wilson has added a new version of Measuring the Formation Energy Barrier of Skyrmions in Zinc Substituted Cu2OSeO3 [dataset] 6 months ago