Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide

Graphene is a light material for long-distance spin transport due to its low spin–orbit coupling, which at the same time is the main drawback for exhibiting a sizable spin Hall effect. Decoration by light atoms has been predicted to enhance the spin Hall angle in graphene while retaining a long spin...

Descripción completa

Detalles Bibliográficos
Autores: Yang, Haozhe, Ormaza, Maider, Chi, Zhendong, Dolan, Eoin, Ingla-Aynés, Josep, Safeer, C.K., Herling, Franz, Ontoso, Nerea, Gobbi, Marco, Martín-García, Beatriz, Schiller, Frederik, Hueso, Luis E., Casanova, Félix
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2023
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/342407
Acceso en línea:http://hdl.handle.net/10261/342407
Access Level:acceso abierto
id ES_da1ec6a8be8d676b2f89972fa3ca3c12
oai_identifier_str oai:digital.csic.es:10261/342407
network_acronym_str ES
network_name_str España
repository_id_str
spelling Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxideYang, HaozheOrmaza, MaiderChi, ZhendongDolan, EoinIngla-Aynés, JosepSafeer, C.K.Herling, FranzOntoso, NereaGobbi, MarcoMartín-García, BeatrizSchiller, FrederikHueso, Luis E.Casanova, FélixGraphene is a light material for long-distance spin transport due to its low spin–orbit coupling, which at the same time is the main drawback for exhibiting a sizable spin Hall effect. Decoration by light atoms has been predicted to enhance the spin Hall angle in graphene while retaining a long spin diffusion length. Here, we combine a light metal oxide (oxidized Cu) with graphene to induce the spin Hall effect. Its efficiency, given by the product of the spin Hall angle and the spin diffusion length, can be tuned with the Fermi level position, exhibiting a maximum (1.8 ± 0.6 nm at 100 K) around the charge neutrality point. This all-light-element heterostructure shows a larger efficiency than conventional spin Hall materials. The gate-tunable spin Hall effect is observed up to room temperature. Our experimental demonstration provides an efficient spin-to-charge conversion system free from heavy metals and compatible with large-scale fabrication.We acknowledge funding by the “Valleytronics” Intel Science Technology Center, by the Spanish MICINN (Project No. PID2021-122511OB-I00 and “Maria de Maeztu” Units of Excellence Programme No. CEX2020-001038-M), by the European Union H2020 under the Marie Sklodowska–Curie Actions (Project Nos. 0766025-QuESTech and 955671-SPEAR), and by Diputación de Gipuzkoa (Project No. 2021-CIEN-000037-01). Z.C. acknowledges postdoctoral fellowship support from the “Juan de la Cierva” Programme by the Spanish MICINN (grant No. FJC2021-047257-I). N.O. acknowledges the Spanish MICINN for support from a Ph.D.fellowship (Grant No. BES-2017-07963).With funding from the Spanish government through the "Severo Ochoa Centre of Excellence" accreditation (CEX2020-001038-M).Peer reviewedAmerican Chemical SocietyMinisterio de Ciencia, Innovación y Universidades (España)Agencia Estatal de Investigación (España)European CommissionDiputación Foral de GuipúzcoaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/342407reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001038-Minfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122511OB-I00info:eu-repo/grantAgreement/EC/H2020/766025info:eu-repo/grantAgreement/EC/H2020/955671info:eu-repo/grantAgreement/AEI//FJC2021-047257-Iinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/BES-2017-079638The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1021/acs.nanolett.3c00687https://doi.org/10.1021/acs.nanolett.3c00687Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3424072026-05-22T06:33:51Z
dc.title.none.fl_str_mv Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
title Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
spellingShingle Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
Yang, Haozhe
title_short Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
title_full Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
title_fullStr Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
title_full_unstemmed Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
title_sort Gate-tunable spin hall effect in an all-light-element heterostructure: Graphene with copper oxide
dc.creator.none.fl_str_mv Yang, Haozhe
Ormaza, Maider
Chi, Zhendong
Dolan, Eoin
Ingla-Aynés, Josep
Safeer, C.K.
Herling, Franz
Ontoso, Nerea
Gobbi, Marco
Martín-García, Beatriz
Schiller, Frederik
Hueso, Luis E.
Casanova, Félix
author Yang, Haozhe
author_facet Yang, Haozhe
Ormaza, Maider
Chi, Zhendong
Dolan, Eoin
Ingla-Aynés, Josep
Safeer, C.K.
Herling, Franz
Ontoso, Nerea
Gobbi, Marco
Martín-García, Beatriz
Schiller, Frederik
Hueso, Luis E.
Casanova, Félix
author_role author
author2 Ormaza, Maider
Chi, Zhendong
Dolan, Eoin
Ingla-Aynés, Josep
Safeer, C.K.
Herling, Franz
Ontoso, Nerea
Gobbi, Marco
Martín-García, Beatriz
Schiller, Frederik
Hueso, Luis E.
Casanova, Félix
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Agencia Estatal de Investigación (España)
European Commission
Diputación Foral de Guipúzcoa
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
description Graphene is a light material for long-distance spin transport due to its low spin–orbit coupling, which at the same time is the main drawback for exhibiting a sizable spin Hall effect. Decoration by light atoms has been predicted to enhance the spin Hall angle in graphene while retaining a long spin diffusion length. Here, we combine a light metal oxide (oxidized Cu) with graphene to induce the spin Hall effect. Its efficiency, given by the product of the spin Hall angle and the spin diffusion length, can be tuned with the Fermi level position, exhibiting a maximum (1.8 ± 0.6 nm at 100 K) around the charge neutrality point. This all-light-element heterostructure shows a larger efficiency than conventional spin Hall materials. The gate-tunable spin Hall effect is observed up to room temperature. Our experimental demonstration provides an efficient spin-to-charge conversion system free from heavy metals and compatible with large-scale fabrication.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/342407
url http://hdl.handle.net/10261/342407
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2020-001038-M
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122511OB-I00
info:eu-repo/grantAgreement/EC/H2020/766025
info:eu-repo/grantAgreement/EC/H2020/955671
info:eu-repo/grantAgreement/AEI//FJC2021-047257-I
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/BES-2017-079638
The underlying dataset has been published as supplementary material of the article in the publisher platform at DOI 10.1021/acs.nanolett.3c00687
https://doi.org/10.1021/acs.nanolett.3c00687
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869421523130908672
score 15,811543

Similares en LA Referencia