Axially bound magnetic skyrmions: glueing topological strings across an interface

A major challenge in topological magnetism lies in the three-dimensional (3D) exploration of their magnetic textures. A recent focus has been the question of how 2D skyrmion sheets vertically stack to form distinct types of 3D topological strings. Being able to manipulate the vertical coupling shoul...

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Asıl Yazarlar: Ran, K, Liu, Y, Jin, H, Shangguan, Y, Guang, Y, Wen, J, Yu, G, van der Laan, G, Hesjedal, T, Zhang, S
Materyal Türü: Journal article
Dil:English
Baskı/Yayın Bilgisi: American Chemical Society 2022
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author Ran, K
Liu, Y
Jin, H
Shangguan, Y
Guang, Y
Wen, J
Yu, G
van der Laan, G
Hesjedal, T
Zhang, S
author_facet Ran, K
Liu, Y
Jin, H
Shangguan, Y
Guang, Y
Wen, J
Yu, G
van der Laan, G
Hesjedal, T
Zhang, S
author_sort Ran, K
collection OXFORD
description A major challenge in topological magnetism lies in the three-dimensional (3D) exploration of their magnetic textures. A recent focus has been the question of how 2D skyrmion sheets vertically stack to form distinct types of 3D topological strings. Being able to manipulate the vertical coupling should therefore provide a route to the engineering of topological states. Here, we present a new type of axially bound magnetic skyrmion string state in which the strings in two distinct materials are glued together across their interface. Using quasi-tomographic resonant elastic x-ray scattering, the 3D skyrmion profiles before and after their binding across the interface were unambiguously determined and compared. Their attractive binding is accompanied by repulsive twisting, i.e., the coupled skyrmions mutually affect each other via a compensating twisting. This state exists in chiral magnet-magnetic thin film heterostructures, providing a new arena for the engineering of 3D topological phases.
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spelling oxford-uuid:98c2b9d4-5b3f-4293-b9e8-66d162e93e232022-07-11T09:12:22ZAxially bound magnetic skyrmions: glueing topological strings across an interfaceJournal articlehttp://purl.org/coar/resource_type/c_545buuid:98c2b9d4-5b3f-4293-b9e8-66d162e93e23EnglishSymplectic ElementsAmerican Chemical Society2022Ran, KLiu, YJin, HShangguan, YGuang, YWen, JYu, Gvan der Laan, GHesjedal, TZhang, SA major challenge in topological magnetism lies in the three-dimensional (3D) exploration of their magnetic textures. A recent focus has been the question of how 2D skyrmion sheets vertically stack to form distinct types of 3D topological strings. Being able to manipulate the vertical coupling should therefore provide a route to the engineering of topological states. Here, we present a new type of axially bound magnetic skyrmion string state in which the strings in two distinct materials are glued together across their interface. Using quasi-tomographic resonant elastic x-ray scattering, the 3D skyrmion profiles before and after their binding across the interface were unambiguously determined and compared. Their attractive binding is accompanied by repulsive twisting, i.e., the coupled skyrmions mutually affect each other via a compensating twisting. This state exists in chiral magnet-magnetic thin film heterostructures, providing a new arena for the engineering of 3D topological phases.
spellingShingle Ran, K
Liu, Y
Jin, H
Shangguan, Y
Guang, Y
Wen, J
Yu, G
van der Laan, G
Hesjedal, T
Zhang, S
Axially bound magnetic skyrmions: glueing topological strings across an interface
title Axially bound magnetic skyrmions: glueing topological strings across an interface
title_full Axially bound magnetic skyrmions: glueing topological strings across an interface
title_fullStr Axially bound magnetic skyrmions: glueing topological strings across an interface
title_full_unstemmed Axially bound magnetic skyrmions: glueing topological strings across an interface
title_short Axially bound magnetic skyrmions: glueing topological strings across an interface
title_sort axially bound magnetic skyrmions glueing topological strings across an interface
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