Spin manipulation in graphene by chemically induced pseudospin polarization

Spin manipulation is one of the most critical challenges to realize spin-based logic devices and spintronic circuits. Graphene has been heralded as an ideal material to achieve spin manipulation, but so far new paradigms and demonstrators are limited. Here we show that certain impurities such as flu...

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Detalhes bibliográficos
Autores: Dinh, Van Tuan|||0000-0002-9605-2686, Roche, Stephan|||0000-0003-0323-4665
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:195335
Acesso em linha:https://ddd.uab.cat/record/195335
https://dx.doi.org/urn:doi:10.1103/PhysRevLett.116.106601
Access Level:acceso abierto
Palavra-chave:Critical challenges
Electron-hole asymmetry
Impurity resonances
Spin lifetimes
Spin manipulation
Spin transport
Spintronic circuits
Sublattice symmetry
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spelling Spin manipulation in graphene by chemically induced pseudospin polarizationDinh, Van Tuan|||0000-0002-9605-2686Roche, Stephan|||0000-0003-0323-4665Critical challengesElectron-hole asymmetryImpurity resonancesSpin lifetimesSpin manipulationSpin transportSpintronic circuitsSublattice symmetrySpin manipulation is one of the most critical challenges to realize spin-based logic devices and spintronic circuits. Graphene has been heralded as an ideal material to achieve spin manipulation, but so far new paradigms and demonstrators are limited. Here we show that certain impurities such as fluorine adatoms, which locally break sublattice symmetry without the formation of strong magnetic moment, could result in a remarkable variability of spin transport characteristics. The impurity resonance level is found to be associated with a long-range sublattice pseudospin polarization, which by locally decoupling spin and pseudospin dynamics provokes a huge spin lifetime electron-hole asymmetry. In the dilute impurity limit, spin lifetimes could be tuned electrostatically from 100 ps to several nanoseconds, providing a protocol to chemically engineer an unprecedented spin device functionality. 22016-01-0120162016-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/195335https://dx.doi.org/urn:doi:10.1103/PhysRevLett.116.106601reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 604391Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2012-33911Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295open 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:1953352026-06-06T12:50:31Z
dc.title.none.fl_str_mv Spin manipulation in graphene by chemically induced pseudospin polarization
title Spin manipulation in graphene by chemically induced pseudospin polarization
spellingShingle Spin manipulation in graphene by chemically induced pseudospin polarization
Dinh, Van Tuan|||0000-0002-9605-2686
Critical challenges
Electron-hole asymmetry
Impurity resonances
Spin lifetimes
Spin manipulation
Spin transport
Spintronic circuits
Sublattice symmetry
title_short Spin manipulation in graphene by chemically induced pseudospin polarization
title_full Spin manipulation in graphene by chemically induced pseudospin polarization
title_fullStr Spin manipulation in graphene by chemically induced pseudospin polarization
title_full_unstemmed Spin manipulation in graphene by chemically induced pseudospin polarization
title_sort Spin manipulation in graphene by chemically induced pseudospin polarization
dc.creator.none.fl_str_mv Dinh, Van Tuan|||0000-0002-9605-2686
Roche, Stephan|||0000-0003-0323-4665
author Dinh, Van Tuan|||0000-0002-9605-2686
author_facet Dinh, Van Tuan|||0000-0002-9605-2686
Roche, Stephan|||0000-0003-0323-4665
author_role author
author2 Roche, Stephan|||0000-0003-0323-4665
author2_role author
dc.subject.none.fl_str_mv Critical challenges
Electron-hole asymmetry
Impurity resonances
Spin lifetimes
Spin manipulation
Spin transport
Spintronic circuits
Sublattice symmetry
topic Critical challenges
Electron-hole asymmetry
Impurity resonances
Spin lifetimes
Spin manipulation
Spin transport
Spintronic circuits
Sublattice symmetry
description Spin manipulation is one of the most critical challenges to realize spin-based logic devices and spintronic circuits. Graphene has been heralded as an ideal material to achieve spin manipulation, but so far new paradigms and demonstrators are limited. Here we show that certain impurities such as fluorine adatoms, which locally break sublattice symmetry without the formation of strong magnetic moment, could result in a remarkable variability of spin transport characteristics. The impurity resonance level is found to be associated with a long-range sublattice pseudospin polarization, which by locally decoupling spin and pseudospin dynamics provokes a huge spin lifetime electron-hole asymmetry. In the dilute impurity limit, spin lifetimes could be tuned electrostatically from 100 ps to several nanoseconds, providing a protocol to chemically engineer an unprecedented spin device functionality.
publishDate 2016
dc.date.none.fl_str_mv 2
2016-01-01
2016
2016-01-01
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/195335
https://dx.doi.org/urn:doi:10.1103/PhysRevLett.116.106601
url https://ddd.uab.cat/record/195335
https://dx.doi.org/urn:doi:10.1103/PhysRevLett.116.106601
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 604391
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 MAT2012-33911
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295
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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