d-wave bond-order charge excitations in electron-doped cuprates

Autores
Yamase, Hiroyuki; Bejas, Matias Hector; Greco, Andres Francisco
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study charge excitation spectra in the two-dimensional t-J model on a square lattice to explore a charge-order tendency recently found in electron-doped cuprates around the carrier density 0.15. The static susceptibility of d-wave charge density, which corresponds to the nematic susceptibility at the momentum transfer q = (0, 0), shows two characteristic peaks at momenta of the form q1 = (q , q ) and q2 = (q, 0). These two peaks originate from the so-called 2kF scattering processes enhanced by the d-wave character of the bond-charge density. The peak at q1 is much broader, but develops to be very sharp in the vicinity of its instability, whereas the peak at q2 becomes sharper with decreasing temperature, but does not diverge. The equaltime correlation function, which is measured by resonant x-ray scattering, exhibits a momentum dependence similar to the static susceptibility. We also present energy-resolved charge excitation spectra. The spectra show a V-shaped structure around q = (0, 0) and bend back toward closeto-zero energy due to the charge-order tendency at q1 and q2. The resulting spectra form gap-like features with a maximal gap at q ≈ q1/2 and q2/2. We discuss implications for the recent experiments in electron-doped cuprates.
Fil: Yamase, Hiroyuki. National Institute for Materials Science; Japón
Fil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Greco, Andres Francisco. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Materia
Electron Doped Cuprates
Charge Orders
X-Ray Scattering
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:11336/6161

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spelling d-wave bond-order charge excitations in electron-doped cupratesYamase, HiroyukiBejas, Matias HectorGreco, Andres FranciscoElectron Doped CupratesCharge OrdersX-Ray Scatteringhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study charge excitation spectra in the two-dimensional t-J model on a square lattice to explore a charge-order tendency recently found in electron-doped cuprates around the carrier density 0.15. The static susceptibility of d-wave charge density, which corresponds to the nematic susceptibility at the momentum transfer q = (0, 0), shows two characteristic peaks at momenta of the form q1 = (q , q ) and q2 = (q, 0). These two peaks originate from the so-called 2kF scattering processes enhanced by the d-wave character of the bond-charge density. The peak at q1 is much broader, but develops to be very sharp in the vicinity of its instability, whereas the peak at q2 becomes sharper with decreasing temperature, but does not diverge. The equaltime correlation function, which is measured by resonant x-ray scattering, exhibits a momentum dependence similar to the static susceptibility. We also present energy-resolved charge excitation spectra. The spectra show a V-shaped structure around q = (0, 0) and bend back toward closeto-zero energy due to the charge-order tendency at q1 and q2. The resulting spectra form gap-like features with a maximal gap at q ≈ q1/2 and q2/2. We discuss implications for the recent experiments in electron-doped cuprates.Fil: Yamase, Hiroyuki. National Institute for Materials Science; JapónFil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; ArgentinaFil: Greco, Andres Francisco. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; ArgentinaIOP Publishing2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/6161Yamase, Hiroyuki; Bejas, Matias Hector; Greco, Andres Francisco; d-wave bond-order charge excitations in electron-doped cuprates; IOP Publishing; Europhysics Letters; 111; 5; 9-2015; 57005-570050295-5075enginfo:eu-repo/semantics/altIdentifier/ark/10.1209/0295-5075/111/57005info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1209/0295-5075/111/57005info:eu-repo/semantics/altIdentifier/doi/10.1209/0295-5075/111/57005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:15:17Zoai:ri.conicet.gov.ar:11336/6161instacron: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 10:15:17.467CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv d-wave bond-order charge excitations in electron-doped cuprates
title d-wave bond-order charge excitations in electron-doped cuprates
spellingShingle d-wave bond-order charge excitations in electron-doped cuprates
Yamase, Hiroyuki
Electron Doped Cuprates
Charge Orders
X-Ray Scattering
title_short d-wave bond-order charge excitations in electron-doped cuprates
title_full d-wave bond-order charge excitations in electron-doped cuprates
title_fullStr d-wave bond-order charge excitations in electron-doped cuprates
title_full_unstemmed d-wave bond-order charge excitations in electron-doped cuprates
title_sort d-wave bond-order charge excitations in electron-doped cuprates
dc.creator.none.fl_str_mv Yamase, Hiroyuki
Bejas, Matias Hector
Greco, Andres Francisco
author Yamase, Hiroyuki
author_facet Yamase, Hiroyuki
Bejas, Matias Hector
Greco, Andres Francisco
author_role author
author2 Bejas, Matias Hector
Greco, Andres Francisco
author2_role author
author
dc.subject.none.fl_str_mv Electron Doped Cuprates
Charge Orders
X-Ray Scattering
topic Electron Doped Cuprates
Charge Orders
X-Ray Scattering
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study charge excitation spectra in the two-dimensional t-J model on a square lattice to explore a charge-order tendency recently found in electron-doped cuprates around the carrier density 0.15. The static susceptibility of d-wave charge density, which corresponds to the nematic susceptibility at the momentum transfer q = (0, 0), shows two characteristic peaks at momenta of the form q1 = (q , q ) and q2 = (q, 0). These two peaks originate from the so-called 2kF scattering processes enhanced by the d-wave character of the bond-charge density. The peak at q1 is much broader, but develops to be very sharp in the vicinity of its instability, whereas the peak at q2 becomes sharper with decreasing temperature, but does not diverge. The equaltime correlation function, which is measured by resonant x-ray scattering, exhibits a momentum dependence similar to the static susceptibility. We also present energy-resolved charge excitation spectra. The spectra show a V-shaped structure around q = (0, 0) and bend back toward closeto-zero energy due to the charge-order tendency at q1 and q2. The resulting spectra form gap-like features with a maximal gap at q ≈ q1/2 and q2/2. We discuss implications for the recent experiments in electron-doped cuprates.
Fil: Yamase, Hiroyuki. National Institute for Materials Science; Japón
Fil: Bejas, Matias Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Rosario. Instituto de Física de Rosario (i); Argentina. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
Fil: Greco, Andres Francisco. Universidad Nacional de Rosario. Facultad de Ciencias Exactas, Ingeniería y Agrimensura; Argentina
description We study charge excitation spectra in the two-dimensional t-J model on a square lattice to explore a charge-order tendency recently found in electron-doped cuprates around the carrier density 0.15. The static susceptibility of d-wave charge density, which corresponds to the nematic susceptibility at the momentum transfer q = (0, 0), shows two characteristic peaks at momenta of the form q1 = (q , q ) and q2 = (q, 0). These two peaks originate from the so-called 2kF scattering processes enhanced by the d-wave character of the bond-charge density. The peak at q1 is much broader, but develops to be very sharp in the vicinity of its instability, whereas the peak at q2 becomes sharper with decreasing temperature, but does not diverge. The equaltime correlation function, which is measured by resonant x-ray scattering, exhibits a momentum dependence similar to the static susceptibility. We also present energy-resolved charge excitation spectra. The spectra show a V-shaped structure around q = (0, 0) and bend back toward closeto-zero energy due to the charge-order tendency at q1 and q2. The resulting spectra form gap-like features with a maximal gap at q ≈ q1/2 and q2/2. We discuss implications for the recent experiments in electron-doped cuprates.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/6161
Yamase, Hiroyuki; Bejas, Matias Hector; Greco, Andres Francisco; d-wave bond-order charge excitations in electron-doped cuprates; IOP Publishing; Europhysics Letters; 111; 5; 9-2015; 57005-57005
0295-5075
url http://hdl.handle.net/11336/6161
identifier_str_mv Yamase, Hiroyuki; Bejas, Matias Hector; Greco, Andres Francisco; d-wave bond-order charge excitations in electron-doped cuprates; IOP Publishing; Europhysics Letters; 111; 5; 9-2015; 57005-57005
0295-5075
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/ark/10.1209/0295-5075/111/57005
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1209/0295-5075/111/57005
info:eu-repo/semantics/altIdentifier/doi/10.1209/0295-5075/111/57005
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
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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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