Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures

Spin-orbit coupling stands as a powerful tool to interconvert charge and spin currents and to manipulate the magnetization of magnetic materials through spin-torque phenomena. However, despite the diversity of existing bulk materials and the recent advent of interfacial and low-dimensional effects,...

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Autores: Benítez, L. Antonio|||0000-0003-1049-4983, Savero Torres, Williams Fernando|||0000-0002-5979-6336, Sierra, Juan F.|||0000-0002-5438-0534, Timmermans, Matias|||0000-0003-4151-9960, Garcia, José H.|||0000-0002-5752-4759, Roche, Stephan|||0000-0003-0323-4665, Costache, Marius Vasile|||0000-0001-7432-6175, Valenzuela, Sergio O.|||0000-0002-4632-8891
Tipo de recurso: artículo
Fecha de publicación:2020
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:235996
Acceso en línea:https://ddd.uab.cat/record/235996
https://dx.doi.org/urn:doi:10.1038/s41563-019-0575-1
Access Level:acceso abierto
Palabra clave:Building blockes
Bulk materials
Charge neutrality
Interconversions
Low dimensional
Magnetic memory
Spin precession
Spin-galvanic effects
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spelling Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructuresBenítez, L. Antonio|||0000-0003-1049-4983Savero Torres, Williams Fernando|||0000-0002-5979-6336Sierra, Juan F.|||0000-0002-5438-0534Timmermans, Matias|||0000-0003-4151-9960Garcia, José H.|||0000-0002-5752-4759Roche, Stephan|||0000-0003-0323-4665Costache, Marius Vasile|||0000-0001-7432-6175Valenzuela, Sergio O.|||0000-0002-4632-8891Building blockesBulk materialsCharge neutralityInterconversionsLow dimensionalMagnetic memorySpin precessionSpin-galvanic effectsSpin-orbit coupling stands as a powerful tool to interconvert charge and spin currents and to manipulate the magnetization of magnetic materials through spin-torque phenomena. However, despite the diversity of existing bulk materials and the recent advent of interfacial and low-dimensional effects, control of this interconversion at room temperature remains elusive. Here, we demonstrate strongly enhanced room-temperature spin-to-charge interconversion in graphene driven by the proximity of WS. By performing spin precession experiments in appropriately designed Hall bars, we separate the contributions of the spin Hall and the spin galvanic effects. Remarkably, their corresponding conversion efficiencies can be tailored by electrostatic gating in magnitude and sign, peaking near the charge neutrality point with an equivalent magnitude that is comparable to the largest efficiencies reported to date. Such electric-field tunability provides a building block for spin generation free from magnetic materials and for ultra-compact magnetic memory technologies. 22020-01-0120202020-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/235996https://dx.doi.org/urn:doi:10.1038/s41563-019-0575-1reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 785219European Commission https://doi.org/10.13039/501100000780 665919Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 MAT2016-75952-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-62641-ERCAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-827open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2359962026-06-06T12:50:31Z
dc.title.none.fl_str_mv Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
title Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
spellingShingle Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
Benítez, L. Antonio|||0000-0003-1049-4983
Building blockes
Bulk materials
Charge neutrality
Interconversions
Low dimensional
Magnetic memory
Spin precession
Spin-galvanic effects
title_short Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
title_full Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
title_fullStr Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
title_full_unstemmed Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
title_sort Tunable room-temperature spin galvanic and spin Hall effects in van der Waals heterostructures
dc.creator.none.fl_str_mv Benítez, L. Antonio|||0000-0003-1049-4983
Savero Torres, Williams Fernando|||0000-0002-5979-6336
Sierra, Juan F.|||0000-0002-5438-0534
Timmermans, Matias|||0000-0003-4151-9960
Garcia, José H.|||0000-0002-5752-4759
Roche, Stephan|||0000-0003-0323-4665
Costache, Marius Vasile|||0000-0001-7432-6175
Valenzuela, Sergio O.|||0000-0002-4632-8891
author Benítez, L. Antonio|||0000-0003-1049-4983
author_facet Benítez, L. Antonio|||0000-0003-1049-4983
Savero Torres, Williams Fernando|||0000-0002-5979-6336
Sierra, Juan F.|||0000-0002-5438-0534
Timmermans, Matias|||0000-0003-4151-9960
Garcia, José H.|||0000-0002-5752-4759
Roche, Stephan|||0000-0003-0323-4665
Costache, Marius Vasile|||0000-0001-7432-6175
Valenzuela, Sergio O.|||0000-0002-4632-8891
author_role author
author2 Savero Torres, Williams Fernando|||0000-0002-5979-6336
Sierra, Juan F.|||0000-0002-5438-0534
Timmermans, Matias|||0000-0003-4151-9960
Garcia, José H.|||0000-0002-5752-4759
Roche, Stephan|||0000-0003-0323-4665
Costache, Marius Vasile|||0000-0001-7432-6175
Valenzuela, Sergio O.|||0000-0002-4632-8891
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Building blockes
Bulk materials
Charge neutrality
Interconversions
Low dimensional
Magnetic memory
Spin precession
Spin-galvanic effects
topic Building blockes
Bulk materials
Charge neutrality
Interconversions
Low dimensional
Magnetic memory
Spin precession
Spin-galvanic effects
description Spin-orbit coupling stands as a powerful tool to interconvert charge and spin currents and to manipulate the magnetization of magnetic materials through spin-torque phenomena. However, despite the diversity of existing bulk materials and the recent advent of interfacial and low-dimensional effects, control of this interconversion at room temperature remains elusive. Here, we demonstrate strongly enhanced room-temperature spin-to-charge interconversion in graphene driven by the proximity of WS. By performing spin precession experiments in appropriately designed Hall bars, we separate the contributions of the spin Hall and the spin galvanic effects. Remarkably, their corresponding conversion efficiencies can be tailored by electrostatic gating in magnitude and sign, peaking near the charge neutrality point with an equivalent magnitude that is comparable to the largest efficiencies reported to date. Such electric-field tunability provides a building block for spin generation free from magnetic materials and for ultra-compact magnetic memory technologies.
publishDate 2020
dc.date.none.fl_str_mv 2
2020-01-01
2020
2020-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
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 https://ddd.uab.cat/record/235996
https://dx.doi.org/urn:doi:10.1038/s41563-019-0575-1
url https://ddd.uab.cat/record/235996
https://dx.doi.org/urn:doi:10.1038/s41563-019-0575-1
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 785219
European Commission https://doi.org/10.13039/501100000780 665919
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706
Agencia Estatal de Investigación https://doi.org/10.13039/501100011033 MAT2016-75952-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-62641-ERC
Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-827
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
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
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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