Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides
- Autores
- Querales Flores, Jose Daniel; Ventura, Cecilia Ileana; Citro, R.; Rodríguez Núñez, J. J.
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Using a second-order perturbative Green's functions approach we determined the normal state spectral function A(k→,ω) employing a minimal model for ferropnictides. Used before to study magnetic fluctuations and superconducting properties, it includes the two effective bands related to Fe-3d orbitals proposed by S. Raghu et al. [Phys. Rev. B 77 (2008) 220503(R)], and local intra- and inter-orbital correlations for the effective orbitals. Here, we focus on the normal state electronic properties, in particular the temperature and doping dependence of the total density of states, A(ω), and of A(k→,ω) in different Brillouin zone regions, comparing them with existing angle resolved photoemission spectroscopy (ARPES) and theoretical results. We obtain an asymmetric effect of electron and hole doping, quantitative agreement with the experimental chemical potential shifts, as well as spectral weight redistributions near the Fermi level with temperature consistent with the available experiments. In addition, we predict a non-trivial dependence of A(ω) with temperature, exhibiting clear renormalization effects by correlations. Interestingly, investigating the origin of this predicted behavior by analyzing the evolution with temperature of the k-dependent self-energy obtained in our approach, we could identify a number of Brillouin zone points, not probed by ARPES yet, where the largest non-trivial effects of temperature on the renormalization are predicted for the parent compounds.
Fil: Querales Flores, Jose Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Ventura, Cecilia Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional de Río Negro; Argentina
Fil: Citro, R.. Universita di Salerno; Italia
Fil: Rodríguez Núñez, J. J.. Universidad de Carabobo; Venezuela. Instituto Venezolano de Investigaciones Científicas; Venezuela - Materia
-
Arpes
Correlated Electron Systems
Electronic Properties
Green'S Functions
Iron Based Superconductors
Normal State Spectral Properties - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/59953
Ver los metadatos del registro completo
id |
CONICETDig_c139203f938234d028c6ae323e794471 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/59953 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictidesQuerales Flores, Jose DanielVentura, Cecilia IleanaCitro, R.Rodríguez Núñez, J. J.ArpesCorrelated Electron SystemsElectronic PropertiesGreen'S FunctionsIron Based SuperconductorsNormal State Spectral Propertieshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Using a second-order perturbative Green's functions approach we determined the normal state spectral function A(k→,ω) employing a minimal model for ferropnictides. Used before to study magnetic fluctuations and superconducting properties, it includes the two effective bands related to Fe-3d orbitals proposed by S. Raghu et al. [Phys. Rev. B 77 (2008) 220503(R)], and local intra- and inter-orbital correlations for the effective orbitals. Here, we focus on the normal state electronic properties, in particular the temperature and doping dependence of the total density of states, A(ω), and of A(k→,ω) in different Brillouin zone regions, comparing them with existing angle resolved photoemission spectroscopy (ARPES) and theoretical results. We obtain an asymmetric effect of electron and hole doping, quantitative agreement with the experimental chemical potential shifts, as well as spectral weight redistributions near the Fermi level with temperature consistent with the available experiments. In addition, we predict a non-trivial dependence of A(ω) with temperature, exhibiting clear renormalization effects by correlations. Interestingly, investigating the origin of this predicted behavior by analyzing the evolution with temperature of the k-dependent self-energy obtained in our approach, we could identify a number of Brillouin zone points, not probed by ARPES yet, where the largest non-trivial effects of temperature on the renormalization are predicted for the parent compounds.Fil: Querales Flores, Jose Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Ventura, Cecilia Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional de Río Negro; ArgentinaFil: Citro, R.. Universita di Salerno; ItaliaFil: Rodríguez Núñez, J. J.. Universidad de Carabobo; Venezuela. Instituto Venezolano de Investigaciones Científicas; VenezuelaElsevier Science2016-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/59953Querales Flores, Jose Daniel; Ventura, Cecilia Ileana; Citro, R.; Rodríguez Núñez, J. J.; Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides; Elsevier Science; Physics Letters A; 380; 18-19; 4-2016; 1648-16570375-9601CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physleta.2016.02.042info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S037596011600195Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:43:21Zoai:ri.conicet.gov.ar:11336/59953instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:43:21.585CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
title |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
spellingShingle |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides Querales Flores, Jose Daniel Arpes Correlated Electron Systems Electronic Properties Green'S Functions Iron Based Superconductors Normal State Spectral Properties |
title_short |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
title_full |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
title_fullStr |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
title_full_unstemmed |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
title_sort |
Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides |
dc.creator.none.fl_str_mv |
Querales Flores, Jose Daniel Ventura, Cecilia Ileana Citro, R. Rodríguez Núñez, J. J. |
author |
Querales Flores, Jose Daniel |
author_facet |
Querales Flores, Jose Daniel Ventura, Cecilia Ileana Citro, R. Rodríguez Núñez, J. J. |
author_role |
author |
author2 |
Ventura, Cecilia Ileana Citro, R. Rodríguez Núñez, J. J. |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Arpes Correlated Electron Systems Electronic Properties Green'S Functions Iron Based Superconductors Normal State Spectral Properties |
topic |
Arpes Correlated Electron Systems Electronic Properties Green'S Functions Iron Based Superconductors Normal State Spectral Properties |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Using a second-order perturbative Green's functions approach we determined the normal state spectral function A(k→,ω) employing a minimal model for ferropnictides. Used before to study magnetic fluctuations and superconducting properties, it includes the two effective bands related to Fe-3d orbitals proposed by S. Raghu et al. [Phys. Rev. B 77 (2008) 220503(R)], and local intra- and inter-orbital correlations for the effective orbitals. Here, we focus on the normal state electronic properties, in particular the temperature and doping dependence of the total density of states, A(ω), and of A(k→,ω) in different Brillouin zone regions, comparing them with existing angle resolved photoemission spectroscopy (ARPES) and theoretical results. We obtain an asymmetric effect of electron and hole doping, quantitative agreement with the experimental chemical potential shifts, as well as spectral weight redistributions near the Fermi level with temperature consistent with the available experiments. In addition, we predict a non-trivial dependence of A(ω) with temperature, exhibiting clear renormalization effects by correlations. Interestingly, investigating the origin of this predicted behavior by analyzing the evolution with temperature of the k-dependent self-energy obtained in our approach, we could identify a number of Brillouin zone points, not probed by ARPES yet, where the largest non-trivial effects of temperature on the renormalization are predicted for the parent compounds. Fil: Querales Flores, Jose Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina Fil: Ventura, Cecilia Ileana. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Universidad Nacional de Río Negro; Argentina Fil: Citro, R.. Universita di Salerno; Italia Fil: Rodríguez Núñez, J. J.. Universidad de Carabobo; Venezuela. Instituto Venezolano de Investigaciones Científicas; Venezuela |
description |
Using a second-order perturbative Green's functions approach we determined the normal state spectral function A(k→,ω) employing a minimal model for ferropnictides. Used before to study magnetic fluctuations and superconducting properties, it includes the two effective bands related to Fe-3d orbitals proposed by S. Raghu et al. [Phys. Rev. B 77 (2008) 220503(R)], and local intra- and inter-orbital correlations for the effective orbitals. Here, we focus on the normal state electronic properties, in particular the temperature and doping dependence of the total density of states, A(ω), and of A(k→,ω) in different Brillouin zone regions, comparing them with existing angle resolved photoemission spectroscopy (ARPES) and theoretical results. We obtain an asymmetric effect of electron and hole doping, quantitative agreement with the experimental chemical potential shifts, as well as spectral weight redistributions near the Fermi level with temperature consistent with the available experiments. In addition, we predict a non-trivial dependence of A(ω) with temperature, exhibiting clear renormalization effects by correlations. Interestingly, investigating the origin of this predicted behavior by analyzing the evolution with temperature of the k-dependent self-energy obtained in our approach, we could identify a number of Brillouin zone points, not probed by ARPES yet, where the largest non-trivial effects of temperature on the renormalization are predicted for the parent compounds. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-04 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/59953 Querales Flores, Jose Daniel; Ventura, Cecilia Ileana; Citro, R.; Rodríguez Núñez, J. J.; Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides; Elsevier Science; Physics Letters A; 380; 18-19; 4-2016; 1648-1657 0375-9601 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/59953 |
identifier_str_mv |
Querales Flores, Jose Daniel; Ventura, Cecilia Ileana; Citro, R.; Rodríguez Núñez, J. J.; Temperature and doping dependence of normal state spectral properties in a two-orbital model for ferropnictides; Elsevier Science; Physics Letters A; 380; 18-19; 4-2016; 1648-1657 0375-9601 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physleta.2016.02.042 info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S037596011600195X |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613364648509440 |
score |
13.070432 |