(2020) Real-space imaging of confined magnetic skyrmion tubes. Nature Communications, 11 (1). 1726. doi:10.1038/s41467-020-15474-8 ISSN 2041-1723.

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Abstract

Magnetic skyrmions are topologically nontrivial particles with a potential application as information elements in future spintronic device architectures. While they are commonly portrayed as two dimensional objects, in reality magnetic skyrmions are thought to exist as elongated, tube-like objects extending through the thickness of the host material. The study of this skyrmion tube state (SkT) is vital for furthering the understanding of skyrmion formation and dynamics for future applications. However, direct experimental imaging of skyrmion tubes has yet to be reported. Here, we demonstrate the real-space observation of skyrmion tubes in a lamella of FeGe using resonant magnetic x-ray imaging and comparative micromagnetic simulations, confirming their extended structure. The formation of these structures at the edge of the sample highlights the importance of confinement and edge effects in the stabilisation of the SkT state, opening the door to further investigation into this unexplored dimension of the skyrmion spin texture.

Item Type:	Journal Article
Subjects:	Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TN Mining engineering. Metallurgy
Divisions:	Faculty of Science, Engineering and Medicine > Science > Physics
Library of Congress Subject Headings (LCSH):	Magnetic particle imaging, Skyrme model, Spintronics, Magnetism
Journal or Publication Title:	Nature Communications
Publisher:	Springer Nature
ISSN:	2041-1723
Official Date:	7 April 2020
Dates:	Date Event 7 April 2020 Published 13 March 2020 Accepted 18 September 2019 Submitted
Volume:	11
Number:	1
Article Number:	1726
DOI:	10.1038/s41467-020-15474-8
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Copyright Holders:	The authors
Date of first compliant deposit:	14 April 2020
Date of first compliant Open Access:	14 April 2020
RIOXX Funder/Project Grant:	Project/Grant ID RIOXX Funder Name Funder ID EP/M028771/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 EP/N032128/1 [EPSRC] Engineering and Physical Sciences Research Council http://dx.doi.org/10.13039/501100000266 UNSPECIFIED [NSERC] Natural Sciences and Engineering Research Council of Canada http://dx.doi.org/10.13039/501100000038
Open Access Version:	Publisher

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