Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides

Detalhes bibliográficos
Autor(a) principal: Henriques, J. C. G.
Data de Publicação: 2021
Outros Autores: Mortensen, N. A., Peres, N. M. R.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/80190
Resumo: We obtain an analytical expression for the linewidth of the 1s exciton as a function of temperature in transition metal dichalcogenides. The total linewidth, as a function of temperature, is dominated by three contributions: (i) the radiative decay (essentially temperature independent), (ii) the phonon-induced intravalley scattering, and (iii) the phonon-induced intervalley scattering. Our approach uses a variational Ansatz to solve the Wannier equation, allowing for an analytical treatment of the excitonic problem, including rates of the decay dynamics. Our results are in good agreement with experimental data already present in the literature and can be used to readily predict the value of the total linewidth at any temperature in the broad class of excitonic two-dimensional materials.
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spelling Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenidesCiências Naturais::Ciências FísicasScience & TechnologyWe obtain an analytical expression for the linewidth of the 1s exciton as a function of temperature in transition metal dichalcogenides. The total linewidth, as a function of temperature, is dominated by three contributions: (i) the radiative decay (essentially temperature independent), (ii) the phonon-induced intravalley scattering, and (iii) the phonon-induced intervalley scattering. Our approach uses a variational Ansatz to solve the Wannier equation, allowing for an analytical treatment of the excitonic problem, including rates of the decay dynamics. Our results are in good agreement with experimental data already present in the literature and can be used to readily predict the value of the total linewidth at any temperature in the broad class of excitonic two-dimensional materials.N.M.R.P. acknowledges support by the Portuguese Foundation for Science and Technology (FCT) in the framework of the Strategic Funding UIDB/04650/2020. J.C.G.H. acknowledges the Center of Physics for a grant funded by the UIDB/04650/2020 strategic project and POCI-01-0145FEDER-028887. N.M.R.P. acknowledges support from the European Commission through the project "Graphene-Driven Revolutions in ICT and Beyond" (Ref. No. 881603, CORE 3), COMPETE 2020, PORTUGAL 2020, FEDER, and the FCT through projects POCI-01-0145-FEDER-028114 and PTDC/NAN-OPT/29265/2017. N.A.M. is a VILLUM Investigator supported by VILLUM FONDEN (Grant No. 16498). The Center for Nanostructured Graphene is sponsored by the Danish National Research Foundation (Project No. DNRF103).American Physical SocietyUniversidade do MinhoHenriques, J. C. G.Mortensen, N. A.Peres, N. M. R.2021-04-082021-04-08T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/80190engHenriques, J. C. G., Mortensen, N. A., & Peres, N. M. R. (2021, June 1). Analytical description of the 1s exciton linewidth temperature dependence in transition metal dichalcogenides. Physical Review B. American Physical Society (APS). http://doi.org/10.1103/physrevb.103.2354022469-99502469-996910.1103/PhysRevB.103.235402https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.235402info: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:RCAAP2023-07-21T12:02:58Zoai:repositorium.sdum.uminho.pt:1822/80190Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:53:02.005464Repositório 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 Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
title Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
spellingShingle Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
Henriques, J. C. G.
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
title_full Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
title_fullStr Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
title_full_unstemmed Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
title_sort Analytical description of the 1s exciton linewidth temperature-dependence in transition metal dichalcogenides
author Henriques, J. C. G.
author_facet Henriques, J. C. G.
Mortensen, N. A.
Peres, N. M. R.
author_role author
author2 Mortensen, N. A.
Peres, N. M. R.
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Henriques, J. C. G.
Mortensen, N. A.
Peres, N. M. R.
dc.subject.por.fl_str_mv Ciências Naturais::Ciências Físicas
Science & Technology
topic Ciências Naturais::Ciências Físicas
Science & Technology
description We obtain an analytical expression for the linewidth of the 1s exciton as a function of temperature in transition metal dichalcogenides. The total linewidth, as a function of temperature, is dominated by three contributions: (i) the radiative decay (essentially temperature independent), (ii) the phonon-induced intravalley scattering, and (iii) the phonon-induced intervalley scattering. Our approach uses a variational Ansatz to solve the Wannier equation, allowing for an analytical treatment of the excitonic problem, including rates of the decay dynamics. Our results are in good agreement with experimental data already present in the literature and can be used to readily predict the value of the total linewidth at any temperature in the broad class of excitonic two-dimensional materials.
publishDate 2021
dc.date.none.fl_str_mv 2021-04-08
2021-04-08T00:00:00Z
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 https://hdl.handle.net/1822/80190
url https://hdl.handle.net/1822/80190
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Henriques, J. C. G., Mortensen, N. A., & Peres, N. M. R. (2021, June 1). Analytical description of the 1s exciton linewidth temperature dependence in transition metal dichalcogenides. Physical Review B. American Physical Society (APS). http://doi.org/10.1103/physrevb.103.235402
2469-9950
2469-9969
10.1103/PhysRevB.103.235402
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.235402
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
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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
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