Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator

Magnetic skyrmions are compact chiral spin textures that exhibit a rich variety of topological phenomena and hold potential for the development of high-density memory devices and novel computing schemes driven by spin currents. Here, we demonstrate the room-temperature interfacial stabilization and...

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Autores: Vélez Centoral, Saul, Ruiz Gómez, Sandra, Schaab, Jakob, Gradauskaite, Elzbieta, Wörnle, Martin S., Welter, Pol, Jacot, Benjamin J., Degen, Christian L., Trassin, Morgan, Fiebig, Manfred, Gambardella, Pietro
Formato: artículo
Fecha de publicación:2022
País:España
Recursos:Universidad Autónoma de Madrid
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/715725
Acesso em linha:http://hdl.handle.net/10486/715725
https://dx.doi.org/10.1038/s41565-022-01144-x
Access Level:acceso abierto
Palavra-chave:Dynamics
Ferrimagnetism
Spin dynamics
Yttrium iron garnet
Spin hall effect
Física
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spelling Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulatorVélez Centoral, SaulRuiz Gómez, SandraSchaab, JakobGradauskaite, ElzbietaWörnle, Martin S.Welter, PolJacot, Benjamin J.Degen, Christian L.Trassin, MorganFiebig, ManfredGambardella, PietroDynamicsFerrimagnetismSpin dynamicsYttrium iron garnetSpin hall effectFísicaMagnetic skyrmions are compact chiral spin textures that exhibit a rich variety of topological phenomena and hold potential for the development of high-density memory devices and novel computing schemes driven by spin currents. Here, we demonstrate the room-temperature interfacial stabilization and current-driven control of skyrmion bubbles in the ferrimagnetic insulator Tm3Fe5O12 coupled to Pt, showing the current-induced motion of individual skyrmion bubbles. The ferrimagnetic order of the crystal together with the interplay of spin–orbit torques and pinning determine the skyrmion dynamics in Tm3Fe5O12 and result in a strong skyrmion Hall effect characterized by a negative deflection angle and hopping motion. Further, we show that the velocity and depinning threshold of the skyrmion bubbles can be modified by exchange coupling Tm3Fe5O12 to an in-plane magnetized Y3Fe5O12 layer, which distorts the spin texture of the skyrmions and leads to directional-dependent rectification of their dynamics. This effect, which is equivalent to a magnetic ratchet, is exploited to control the skyrmion flow in a racetrack-like deviceWe acknowledge A. Thiaville, A. Hrabec and C. Moutafis for useful discussions and M. Müller for technical assistance with the MOKE set-up. This work was funded by the Swiss National Science Foundation (grant nos. 200020-200465 (P.G.), 200021-188414 (M.T.), 200021-178825 (M.F.), PZ00P2-179944 (B.J.J.) and 200020-175600 (C.L.D.)), the European Research Council (Advanced Grant 694955-INSEETO (M.F.)) and ETH Zürich (Career Seed Grant SEED-20 19-2 (S.V.)). S.R.-G. acknowledges support from the Spanish Ministry of Economy and Competitiveness (FPI fellowship and grant no. RTI2018-095303-B-C53). S.V. acknowledges financial support by the Ministry of Science, Innovation and Universities through the Maria de Maeztu Program for Units of Excellence in R&D (grant no. CEX2018-000805-M) and the Comunidad de Madrid through the Atracción de Talento program (grant no. 2020-T1/IND-20041)Nature ResearchDepartamento de Física de la Materia CondensadaFacultad de Ciencias20222022-07-04research articlehttp://purl.org/coar/resource_type/c_2df8fbb1AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/715725https://dx.doi.org/10.1038/s41565-022-01144-xreponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:Universidad Autónoma de MadridInglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7157252026-06-23T12:46:27Z
dc.title.none.fl_str_mv Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
title Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
spellingShingle Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
Vélez Centoral, Saul
Dynamics
Ferrimagnetism
Spin dynamics
Yttrium iron garnet
Spin hall effect
Física
title_short Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
title_full Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
title_fullStr Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
title_full_unstemmed Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
title_sort Current-driven dynamics and ratchet effect of skyrmion bubbles in a ferrimagnetic insulator
dc.creator.none.fl_str_mv Vélez Centoral, Saul
Ruiz Gómez, Sandra
Schaab, Jakob
Gradauskaite, Elzbieta
Wörnle, Martin S.
Welter, Pol
Jacot, Benjamin J.
Degen, Christian L.
Trassin, Morgan
Fiebig, Manfred
Gambardella, Pietro
author Vélez Centoral, Saul
author_facet Vélez Centoral, Saul
Ruiz Gómez, Sandra
Schaab, Jakob
Gradauskaite, Elzbieta
Wörnle, Martin S.
Welter, Pol
Jacot, Benjamin J.
Degen, Christian L.
Trassin, Morgan
Fiebig, Manfred
Gambardella, Pietro
author_role author
author2 Ruiz Gómez, Sandra
Schaab, Jakob
Gradauskaite, Elzbieta
Wörnle, Martin S.
Welter, Pol
Jacot, Benjamin J.
Degen, Christian L.
Trassin, Morgan
Fiebig, Manfred
Gambardella, Pietro
author2_role author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Física de la Materia Condensada
Facultad de Ciencias
dc.subject.none.fl_str_mv Dynamics
Ferrimagnetism
Spin dynamics
Yttrium iron garnet
Spin hall effect
Física
topic Dynamics
Ferrimagnetism
Spin dynamics
Yttrium iron garnet
Spin hall effect
Física
description Magnetic skyrmions are compact chiral spin textures that exhibit a rich variety of topological phenomena and hold potential for the development of high-density memory devices and novel computing schemes driven by spin currents. Here, we demonstrate the room-temperature interfacial stabilization and current-driven control of skyrmion bubbles in the ferrimagnetic insulator Tm3Fe5O12 coupled to Pt, showing the current-induced motion of individual skyrmion bubbles. The ferrimagnetic order of the crystal together with the interplay of spin–orbit torques and pinning determine the skyrmion dynamics in Tm3Fe5O12 and result in a strong skyrmion Hall effect characterized by a negative deflection angle and hopping motion. Further, we show that the velocity and depinning threshold of the skyrmion bubbles can be modified by exchange coupling Tm3Fe5O12 to an in-plane magnetized Y3Fe5O12 layer, which distorts the spin texture of the skyrmions and leads to directional-dependent rectification of their dynamics. This effect, which is equivalent to a magnetic ratchet, is exploited to control the skyrmion flow in a racetrack-like device
publishDate 2022
dc.date.none.fl_str_mv 2022
2022-07-04
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/715725
https://dx.doi.org/10.1038/s41565-022-01144-x
url http://hdl.handle.net/10486/715725
https://dx.doi.org/10.1038/s41565-022-01144-x
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Nature Research
publisher.none.fl_str_mv Nature Research
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:Universidad Autónoma de Madrid
instname_str Universidad Autónoma de Madrid
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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