Possible charge instabilities in two-dimensional doped Mott insulators

Autores
Bejas, Matias Hector; Greco, Andres Francisco; Yamase, Hiroyuki
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Motivated by the growing evidence of the importance of charge fluctuations in the pseudogap phase in hightemperature cuprate superconductors, we apply a large-N expansion formulated in a path integral representation of the two-dimensional t-J model on a square lattice. We study all possible charge instabilities of the paramagnetic state in leading order of the 1/N expansion. While the d-wave charge density wave (flux phase) becomes the leading instability for various choices of model parameters, we find that a d-wave Pomeranchuk (electronic nematic phase) instability occurs as a next leading one. In particular, the nematic state has a strong tendency to become inhomogeneous. In the presence of a large second nearest-neighbor hopping integral, the flux phase is suppressed and the electronic nematic instability becomes leading in a high doping region. Besides these two major instabilities, bond-order phases occur as weaker instabilities close to half-filling. Phase separation is also detected in a finite temperature region near half-filling.
Fil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. The Abdus Salam. International Centre for Theoretical Physics; Italia
Fil: Greco, Andres Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Yamase, Hiroyuki. National Institute For Material Science; Japón. Max-Planck-Institute for Solid State Research; Alemania
Materia
Correlated systems
Instabilities
Mott
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/272606
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Possible charge instabilities in two-dimensional doped Mott insulatorsBejas, Matias HectorGreco, Andres FranciscoYamase, HiroyukiCorrelated systemsInstabilitiesMotthttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Motivated by the growing evidence of the importance of charge fluctuations in the pseudogap phase in hightemperature cuprate superconductors, we apply a large-N expansion formulated in a path integral representation of the two-dimensional t-J model on a square lattice. We study all possible charge instabilities of the paramagnetic state in leading order of the 1/N expansion. While the d-wave charge density wave (flux phase) becomes the leading instability for various choices of model parameters, we find that a d-wave Pomeranchuk (electronic nematic phase) instability occurs as a next leading one. In particular, the nematic state has a strong tendency to become inhomogeneous. In the presence of a large second nearest-neighbor hopping integral, the flux phase is suppressed and the electronic nematic instability becomes leading in a high doping region. Besides these two major instabilities, bond-order phases occur as weaker instabilities close to half-filling. Phase separation is also detected in a finite temperature region near half-filling.Fil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. The Abdus Salam. International Centre for Theoretical Physics; ItaliaFil: Greco, Andres Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; ArgentinaFil: Yamase, Hiroyuki. National Institute For Material Science; Japón. Max-Planck-Institute for Solid State Research; AlemaniaAmerican Physical Society2012-12info: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/11336/272606Bejas, Matias Hector; Greco, Andres Francisco; Yamase, Hiroyuki; Possible charge instabilities in two-dimensional doped Mott insulators; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 86; 22; 12-2012; 1-120163-18291098-0121CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.86.224509info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.86.224509info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:11:46Zoai:ri.conicet.gov.ar:11336/272606instacron: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:34982025-10-15 15:11:46.372CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Possible charge instabilities in two-dimensional doped Mott insulators
title Possible charge instabilities in two-dimensional doped Mott insulators
spellingShingle Possible charge instabilities in two-dimensional doped Mott insulators
Bejas, Matias Hector
Correlated systems
Instabilities
Mott
title_short Possible charge instabilities in two-dimensional doped Mott insulators
title_full Possible charge instabilities in two-dimensional doped Mott insulators
title_fullStr Possible charge instabilities in two-dimensional doped Mott insulators
title_full_unstemmed Possible charge instabilities in two-dimensional doped Mott insulators
title_sort Possible charge instabilities in two-dimensional doped Mott insulators
dc.creator.none.fl_str_mv Bejas, Matias Hector
Greco, Andres Francisco
Yamase, Hiroyuki
author Bejas, Matias Hector
author_facet Bejas, Matias Hector
Greco, Andres Francisco
Yamase, Hiroyuki
author_role author
author2 Greco, Andres Francisco
Yamase, Hiroyuki
author2_role author
author
dc.subject.none.fl_str_mv Correlated systems
Instabilities
Mott
topic Correlated systems
Instabilities
Mott
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Motivated by the growing evidence of the importance of charge fluctuations in the pseudogap phase in hightemperature cuprate superconductors, we apply a large-N expansion formulated in a path integral representation of the two-dimensional t-J model on a square lattice. We study all possible charge instabilities of the paramagnetic state in leading order of the 1/N expansion. While the d-wave charge density wave (flux phase) becomes the leading instability for various choices of model parameters, we find that a d-wave Pomeranchuk (electronic nematic phase) instability occurs as a next leading one. In particular, the nematic state has a strong tendency to become inhomogeneous. In the presence of a large second nearest-neighbor hopping integral, the flux phase is suppressed and the electronic nematic instability becomes leading in a high doping region. Besides these two major instabilities, bond-order phases occur as weaker instabilities close to half-filling. Phase separation is also detected in a finite temperature region near half-filling.
Fil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. The Abdus Salam. International Centre for Theoretical Physics; Italia
Fil: Greco, Andres Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Yamase, Hiroyuki. National Institute For Material Science; Japón. Max-Planck-Institute for Solid State Research; Alemania
description Motivated by the growing evidence of the importance of charge fluctuations in the pseudogap phase in hightemperature cuprate superconductors, we apply a large-N expansion formulated in a path integral representation of the two-dimensional t-J model on a square lattice. We study all possible charge instabilities of the paramagnetic state in leading order of the 1/N expansion. While the d-wave charge density wave (flux phase) becomes the leading instability for various choices of model parameters, we find that a d-wave Pomeranchuk (electronic nematic phase) instability occurs as a next leading one. In particular, the nematic state has a strong tendency to become inhomogeneous. In the presence of a large second nearest-neighbor hopping integral, the flux phase is suppressed and the electronic nematic instability becomes leading in a high doping region. Besides these two major instabilities, bond-order phases occur as weaker instabilities close to half-filling. Phase separation is also detected in a finite temperature region near half-filling.
publishDate 2012
dc.date.none.fl_str_mv 2012-12
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/11336/272606
Bejas, Matias Hector; Greco, Andres Francisco; Yamase, Hiroyuki; Possible charge instabilities in two-dimensional doped Mott insulators; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 86; 22; 12-2012; 1-12
0163-1829
1098-0121
CONICET Digital
CONICET
url http://hdl.handle.net/11336/272606
identifier_str_mv Bejas, Matias Hector; Greco, Andres Francisco; Yamase, Hiroyuki; Possible charge instabilities in two-dimensional doped Mott insulators; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 86; 22; 12-2012; 1-12
0163-1829
1098-0121
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.86.224509
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.86.224509
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 American Physical Society
publisher.none.fl_str_mv American Physical Society
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
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score 13.22299

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