Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/73392 |
Resumo: | The electronic dispersions of the quasi-one-dimensional organic conductor TTF-TCNQ are studied by angle-resolved photoelectron spectroscopy (ARPES) with higher angular resolution and accordingly smaller step width than in previous studies. Our experimental results suggest that a refinement of the single-band 1D Hubbard model that includes finite-range interactions is needed to explain these photoemission data. To account for the effects of these finite-range interactions we employ a mobile quantum impurity scheme that describes the scattering of fractionalized particles at energies above the standard Tomonaga-Luttinger liquid limit. Our theoretical predictions agree quantitatively with the location in the (k,ω) plane of the experimentally observed ARPES structures at these higher energies. The nonperturbative microscopic mechanisms that control the spectral properties are found to simplify in terms of the exotic scattering of the charge fractionalized particles. We find that the scattering occurs in the unitary limit of (minus) infinite scattering length, which limit occurs within neutron-neutron interactions in shells of neutron stars and in the scattering of ultracold atoms but not in perturbative electronic condensed-matter systems. Our results provide important physical information on the exotic processes involved in the finite-range electron interactions that control the high-energy spectral properties of TTF-TCNQ. Our results also apply to a wider class of 1D and quasi-1D materials and systems that are of theoretical and potential technological interest. |
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Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQCiências Naturais::Ciências FísicasScience & TechnologyThe electronic dispersions of the quasi-one-dimensional organic conductor TTF-TCNQ are studied by angle-resolved photoelectron spectroscopy (ARPES) with higher angular resolution and accordingly smaller step width than in previous studies. Our experimental results suggest that a refinement of the single-band 1D Hubbard model that includes finite-range interactions is needed to explain these photoemission data. To account for the effects of these finite-range interactions we employ a mobile quantum impurity scheme that describes the scattering of fractionalized particles at energies above the standard Tomonaga-Luttinger liquid limit. Our theoretical predictions agree quantitatively with the location in the (k,ω) plane of the experimentally observed ARPES structures at these higher energies. The nonperturbative microscopic mechanisms that control the spectral properties are found to simplify in terms of the exotic scattering of the charge fractionalized particles. We find that the scattering occurs in the unitary limit of (minus) infinite scattering length, which limit occurs within neutron-neutron interactions in shells of neutron stars and in the scattering of ultracold atoms but not in perturbative electronic condensed-matter systems. Our results provide important physical information on the exotic processes involved in the finite-range electron interactions that control the high-energy spectral properties of TTF-TCNQ. Our results also apply to a wider class of 1D and quasi-1D materials and systems that are of theoretical and potential technological interest.We thank Claus S. Jacobsen for providing the single crystals used in our ARPES studies. J.M.P.C. acknowledges the late Adilet Imambekov for discussions that were helpful in writing this paper. He also would like to thank Boston University's Condensed Matter Theory Visitors Program for support and the hospitality of MIT. J.M.P.C. and T.C. acknowledge the support from Fundacao para a Ciencia e Tecnologia (FCT) through the Grants No. UID/FIS/04650/2013 and No. PTDC/FIS-MAC/29291/2017, J.M.P.C. acknowledges that from the FCT Grants No. SFRH/BSAB/142925/2018 and No. POCI-01-0145-FEDER-028887, and T.C. acknowledges the support from the National Natural Science Foundation of China Grant No. 11650110443.American Physical SocietyUniversidade do MinhoCarmelo, José Manuel PereiraČadeŽ, TilenCampbell, David K.Sing, MichaelClaessen, Ralph20192019-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/73392engCarmelo, J. M. P., Čadež, T., Campbell, D. K., Sing, M., & Claessen, R. (2019). Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ. Physical Review B, 100(24), 245202. doi: 10.1103/PhysRevB.100.2452022469-995010.1103/PhysRevB.100.245202https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.245202info: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:RCAAP2023-07-21T12:08:29Zoai:repositorium.sdum.uminho.pt:1822/73392Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:59:43.298170Repositório 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 |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
title |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
spellingShingle |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ Carmelo, José Manuel Pereira Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
title_full |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
title_fullStr |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
title_full_unstemmed |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
title_sort |
Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ |
author |
Carmelo, José Manuel Pereira |
author_facet |
Carmelo, José Manuel Pereira ČadeŽ, Tilen Campbell, David K. Sing, Michael Claessen, Ralph |
author_role |
author |
author2 |
ČadeŽ, Tilen Campbell, David K. Sing, Michael Claessen, Ralph |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Carmelo, José Manuel Pereira ČadeŽ, Tilen Campbell, David K. Sing, Michael Claessen, Ralph |
dc.subject.por.fl_str_mv |
Ciências Naturais::Ciências Físicas Science & Technology |
topic |
Ciências Naturais::Ciências Físicas Science & Technology |
description |
The electronic dispersions of the quasi-one-dimensional organic conductor TTF-TCNQ are studied by angle-resolved photoelectron spectroscopy (ARPES) with higher angular resolution and accordingly smaller step width than in previous studies. Our experimental results suggest that a refinement of the single-band 1D Hubbard model that includes finite-range interactions is needed to explain these photoemission data. To account for the effects of these finite-range interactions we employ a mobile quantum impurity scheme that describes the scattering of fractionalized particles at energies above the standard Tomonaga-Luttinger liquid limit. Our theoretical predictions agree quantitatively with the location in the (k,ω) plane of the experimentally observed ARPES structures at these higher energies. The nonperturbative microscopic mechanisms that control the spectral properties are found to simplify in terms of the exotic scattering of the charge fractionalized particles. We find that the scattering occurs in the unitary limit of (minus) infinite scattering length, which limit occurs within neutron-neutron interactions in shells of neutron stars and in the scattering of ultracold atoms but not in perturbative electronic condensed-matter systems. Our results provide important physical information on the exotic processes involved in the finite-range electron interactions that control the high-energy spectral properties of TTF-TCNQ. Our results also apply to a wider class of 1D and quasi-1D materials and systems that are of theoretical and potential technological interest. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 2019-01-01T00:00:00Z |
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/1822/73392 |
url |
http://hdl.handle.net/1822/73392 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Carmelo, J. M. P., Čadež, T., Campbell, D. K., Sing, M., & Claessen, R. (2019). Effects of finite-range interactions on the one-electron spectral properties of TTF-TCNQ. Physical Review B, 100(24), 245202. doi: 10.1103/PhysRevB.100.245202 2469-9950 10.1103/PhysRevB.100.245202 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.245202 |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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