Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response

Detalhes bibliográficos
Autor(a) principal: Have, J.
Data de Publicação: 2019
Outros Autores: Peres, N. M. R., Pedersen, T. G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/61493
Resumo: The magneto-optical response of monolayer transition metal dichalcogenides (TMDs), including excitonic effects, is studied using a nanoribbon geometry. We compute the diagonal optical conductivity and the Hall conductivity. Comparing the excitonic optical Hall conductivity to results obtained in the independent particle approximation, we find an increase in the amplitude corresponding to one order of magnitude when excitonic effects are included. The Hall conductivities are used to calculate Faraday rotation spectra for MoS2 and WSe2. Finally, we have also calculated the diamagnetic shift of the exciton states of WSe2 in different dielectric environments. Comparing the calculated diamagnetic shift to recent experimental measurements, we find a very good agreement between the two.
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spelling Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional responseExcitonsTransition Metal DichalcogenidesCiências Naturais::Ciências FísicasScience & TechnologyThe magneto-optical response of monolayer transition metal dichalcogenides (TMDs), including excitonic effects, is studied using a nanoribbon geometry. We compute the diagonal optical conductivity and the Hall conductivity. Comparing the excitonic optical Hall conductivity to results obtained in the independent particle approximation, we find an increase in the amplitude corresponding to one order of magnitude when excitonic effects are included. The Hall conductivities are used to calculate Faraday rotation spectra for MoS2 and WSe2. Finally, we have also calculated the diamagnetic shift of the exciton states of WSe2 in different dielectric environments. Comparing the calculated diamagnetic shift to recent experimental measurements, we find a very good agreement between the two.QUSCOPE Center, sponsored by the Vil- lum Foundation. Additionally, T.G.P. is supported by the Center for Nanostructured Graphene (CNG), which is sponsored by the Danish National Research Founda- tion, Project No. DNRF103. N.M.R.P. acknowledges support from the European Commission through the project “Graphene-Driven Revolutions in ICT and Be- yond” (Ref. No. 785219), COMPETE2020, PORTU- GAL2020, FEDER and the Portuguese Foundation for Science and Technology (FCT) through project POCI- 01-0145-FEDER-028114 and in the framework of the Strategic Financing UID/FIS/04650/2013American Physical SocietyUniversidade do MinhoHave, J.Peres, N. M. R.Pedersen, T. G.2019-05-162019-05-16T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/61493engHave, J., Peres, N. M. R., & Pedersen, T. G. (2019). Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response. Physical Review B, 100(4), 045411.2469-99502469-996910.1103/PhysRevB.100.045411https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.045411info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-05-11T06:48:51Zoai:repositorium.sdum.uminho.pt:1822/61493Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-11T06:48:51Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
title Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
spellingShingle Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
Have, J.
Excitons
Transition Metal Dichalcogenides
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
title_full Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
title_fullStr Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
title_full_unstemmed Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
title_sort Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response
author Have, J.
author_facet Have, J.
Peres, N. M. R.
Pedersen, T. G.
author_role author
author2 Peres, N. M. R.
Pedersen, T. G.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Have, J.
Peres, N. M. R.
Pedersen, T. G.
dc.subject.por.fl_str_mv Excitons
Transition Metal Dichalcogenides
Ciências Naturais::Ciências Físicas
Science & Technology
topic Excitons
Transition Metal Dichalcogenides
Ciências Naturais::Ciências Físicas
Science & Technology
description The magneto-optical response of monolayer transition metal dichalcogenides (TMDs), including excitonic effects, is studied using a nanoribbon geometry. We compute the diagonal optical conductivity and the Hall conductivity. Comparing the excitonic optical Hall conductivity to results obtained in the independent particle approximation, we find an increase in the amplitude corresponding to one order of magnitude when excitonic effects are included. The Hall conductivities are used to calculate Faraday rotation spectra for MoS2 and WSe2. Finally, we have also calculated the diamagnetic shift of the exciton states of WSe2 in different dielectric environments. Comparing the calculated diamagnetic shift to recent experimental measurements, we find a very good agreement between the two.
publishDate 2019
dc.date.none.fl_str_mv 2019-05-16
2019-05-16T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/61493
url http://hdl.handle.net/1822/61493
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Have, J., Peres, N. M. R., & Pedersen, T. G. (2019). Excitonic magneto-optics in monolayer transition metal dichalcogenides: From nanoribbons to two-dimensional response. Physical Review B, 100(4), 045411.
2469-9950
2469-9969
10.1103/PhysRevB.100.045411
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.045411
dc.rights.driver.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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
_version_ 1817545101844414464

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