Terahertz Spin-Light Coupling in Proximitized Dirac Materials

The two-dimensional (2D) materials are highly susceptible to the influence of their neighbors, thereby enabling the design by proximity phenomena. We reveal a remarkable terahertz (THz) spin-light interaction in 2D Dirac materials that arises from magnetic and spin-orbital proximity effects. The dyn...

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Detalles Bibliográficos
Autores: Denisov, Konstantin S., Rozhansky, Igor V., Valenzuela, Sergio O., Žutić, Igor
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/381346
Acceso en línea:http://hdl.handle.net/10261/381346
http://arxiv.org/abs/2410.21614v1
Access Level:acceso abierto
Palabra clave:Optical spin injection
Spin dynamics
Spin generation
Spin-orbit coupling
Spintronics
Dirac semimetal
Graphene
Van der Waals systems
Electron dipole spin resonance
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spelling Terahertz Spin-Light Coupling in Proximitized Dirac MaterialsDenisov, Konstantin S.Rozhansky, Igor V.Valenzuela, Sergio O.Žutić, IgorOptical spin injectionSpin dynamicsSpin generationSpin-orbit couplingSpintronicsDirac semimetalGrapheneVan der Waals systemsElectron dipole spin resonanceThe two-dimensional (2D) materials are highly susceptible to the influence of their neighbors, thereby enabling the design by proximity phenomena. We reveal a remarkable terahertz (THz) spin-light interaction in 2D Dirac materials that arises from magnetic and spin-orbital proximity effects. The dynamical realization of the spin-charge conversion, the electric dipole spin resonance (EDSR), of Dirac electrons displays distinctive THz features, upon emerging spin-pseudospin proximity terms in the Hamiltonian. To capture the effect of fast pseudospin dynamics on the electron spin, we develop a mean-field theory and complement it with a quantum-mechanical treatment. As a specific example, we investigate the THz response of a single graphene layer proximitized by a magnetic substrate. Our analysis demonstrates a strong enhancement and anomalous polarization structure of the THz-light absorption which can enable THz detection and efficient generation and control of spins in spin-based quantum devices. The identified coupled spin-pseudospin dynamics is not limited to EDSR and may influence a broad range of optical, transport, and ultrafast phenomena.We thank K. Y. Golenitskii for discussing optical properties of magnetic vdW heterostructures, B. D. McCombe for discussing the EDSR history, and D. Torres (ICN2) for help with 3D device models in Figs. 1 and 2. Analytical work at Ioffe Institute by K.S.D. was supported by the Russian Science Foundation (RSF), Project No. 22-22-20082 (RSF Contract No. 22-22-20082 from 25.03.2022; contract with a regional Grant No. 23/2022 from 14.04.2022). I.Ž. was supported by the U.S. DOE, Office of Science BES, Award No. DE-SC0004890. S.O.V. was supported by the Spanish Ministry of Science and Innovation (MCIN) and the Spanish Research Agency (MCIN/AEI/10.13039/501100011033) through Grants No. PID2019-111773RB-I00 and No. PID2022-143162OB-I00 and Severo Ochoa CEX2021-001214-S. I.V.R. acknowledges Council for At-Risk Academics (CARA) support.With funding from the Spanish government through the "Severo Ochoa Centre of Excelence" accreditation (CEX2021-001214-S)Peer reviewedAmerican Physical SocietyRussian Science FoundationMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)Denisov, Konstantin S. [0000-0002-1477-3667]Rozhansky, Igor V. [0000-0001-9391-9304]Žutić, Igor [0000-0003-2485-226X]Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttp://hdl.handle.net/10261/381346http://arxiv.org/abs/2410.21614v1reponame: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#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-111773RB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-143162OB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001214-SDenisov, Konstantin S.; Rozhansky, Igor V.; Valenzuela, Sergio O.; Žutić, Igor; 2024; Supplemental Material: Terahertz Spin-Light Coupling in Proximitized Dirac Systems; American Physical Society; https://doi.org/10.1103/PhysRevB.109.L201406https://doi.org/10.1103/PhysRevB.109.L201406Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3813462026-05-22T06:33:51Z
dc.title.none.fl_str_mv Terahertz Spin-Light Coupling in Proximitized Dirac Materials
title Terahertz Spin-Light Coupling in Proximitized Dirac Materials
spellingShingle Terahertz Spin-Light Coupling in Proximitized Dirac Materials
Denisov, Konstantin S.
Optical spin injection
Spin dynamics
Spin generation
Spin-orbit coupling
Spintronics
Dirac semimetal
Graphene
Van der Waals systems
Electron dipole spin resonance
title_short Terahertz Spin-Light Coupling in Proximitized Dirac Materials
title_full Terahertz Spin-Light Coupling in Proximitized Dirac Materials
title_fullStr Terahertz Spin-Light Coupling in Proximitized Dirac Materials
title_full_unstemmed Terahertz Spin-Light Coupling in Proximitized Dirac Materials
title_sort Terahertz Spin-Light Coupling in Proximitized Dirac Materials
dc.creator.none.fl_str_mv Denisov, Konstantin S.
Rozhansky, Igor V.
Valenzuela, Sergio O.
Žutić, Igor
author Denisov, Konstantin S.
author_facet Denisov, Konstantin S.
Rozhansky, Igor V.
Valenzuela, Sergio O.
Žutić, Igor
author_role author
author2 Rozhansky, Igor V.
Valenzuela, Sergio O.
Žutić, Igor
author2_role author
author
author
dc.contributor.none.fl_str_mv Russian Science Foundation
Ministerio de Ciencia e Innovación (España)
Agencia Estatal de Investigación (España)
Denisov, Konstantin S. [0000-0002-1477-3667]
Rozhansky, Igor V. [0000-0001-9391-9304]
Žutić, Igor [0000-0003-2485-226X]
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Optical spin injection
Spin dynamics
Spin generation
Spin-orbit coupling
Spintronics
Dirac semimetal
Graphene
Van der Waals systems
Electron dipole spin resonance
topic Optical spin injection
Spin dynamics
Spin generation
Spin-orbit coupling
Spintronics
Dirac semimetal
Graphene
Van der Waals systems
Electron dipole spin resonance
description The two-dimensional (2D) materials are highly susceptible to the influence of their neighbors, thereby enabling the design by proximity phenomena. We reveal a remarkable terahertz (THz) spin-light interaction in 2D Dirac materials that arises from magnetic and spin-orbital proximity effects. The dynamical realization of the spin-charge conversion, the electric dipole spin resonance (EDSR), of Dirac electrons displays distinctive THz features, upon emerging spin-pseudospin proximity terms in the Hamiltonian. To capture the effect of fast pseudospin dynamics on the electron spin, we develop a mean-field theory and complement it with a quantum-mechanical treatment. As a specific example, we investigate the THz response of a single graphene layer proximitized by a magnetic substrate. Our analysis demonstrates a strong enhancement and anomalous polarization structure of the THz-light absorption which can enable THz detection and efficient generation and control of spins in spin-based quantum devices. The identified coupled spin-pseudospin dynamics is not limited to EDSR and may influence a broad range of optical, transport, and ultrafast phenomena.
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
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/10261/381346
http://arxiv.org/abs/2410.21614v1
url http://hdl.handle.net/10261/381346
http://arxiv.org/abs/2410.21614v1
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#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-111773RB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2022-143162OB-I00
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/CEX2021-001214-S
Denisov, Konstantin S.; Rozhansky, Igor V.; Valenzuela, Sergio O.; Žutić, Igor; 2024; Supplemental Material: Terahertz Spin-Light Coupling in Proximitized Dirac Systems; American Physical Society; https://doi.org/10.1103/PhysRevB.109.L201406
https://doi.org/10.1103/PhysRevB.109.L201406
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 Physical Society
publisher.none.fl_str_mv American Physical 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
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