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Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3
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Loudon, J. C., Leonov, A. O., Bogdanov, A. N., Ciomaga Hatnean, Monica and Balakrishnan, Geetha (2018) Direct observation of attractive skyrmions and skyrmion clusters in the cubic helimagnet Cu2OSeO3. Physical Review B, 97 (13). p. 134403. 134403. doi:10.1103/PhysRevB.97.134403
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WRAP-direct-observation-attactive-skyrmions-cubic-Balakrishnan-2018.pdf - Published Version - Requires a PDF viewer. Download (2449Kb) | Preview |
Official URL: http://dx.doi.org/10.1103/PhysRevB.97.134403
Abstract
We report the discovery of attractive magnetic skyrmions and their clusters in noncentrosymmetric ferromagnets. These three-dimensional solitons have been predicted to exist in the cone phase of chiral ferromagnets [J. Phys: Condens. Matter 28, 35LT01 (2016)] and are fundamentally different from the more common repulsive axisymmetric skyrmions that occur in the magnetically saturated state. We present real-space images of these skyrmion clusters in thin (∼70 nm) single crystal samples of Cu2OSeO3 taken using transmission electron microscopy and develop a phenomenological theory describing this type of skyrmion.
| Item Type: | Journal Article | |||||||||||||||
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| Subjects: | Q Science > QC Physics | |||||||||||||||
| Divisions: | Faculty of Science > Physics | |||||||||||||||
| Library of Congress Subject Headings (LCSH): | Ferromagnetic materials, Skyrme model, Solitons | |||||||||||||||
| Journal or Publication Title: | Physical Review B | |||||||||||||||
| Publisher: | American Physical Society | |||||||||||||||
| ISSN: | 2469-9950 | |||||||||||||||
| Official Date: | 5 April 2018 | |||||||||||||||
| Dates: |
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| Volume: | 97 | |||||||||||||||
| Number: | 13 | |||||||||||||||
| Page Range: | p. 134403 | |||||||||||||||
| Article Number: | 134403 | |||||||||||||||
| DOI: | 10.1103/PhysRevB.97.134403 | |||||||||||||||
| Status: | Peer Reviewed | |||||||||||||||
| Publication Status: | Published | |||||||||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||||||||
| Copyright Holders: | American Physical Society | |||||||||||||||
| RIOXX Funder/Project Grant: |
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