Breakdown of the Nagaoka phase at finite doping
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRN |
Texto Completo: | https://repositorio.ufrn.br/jspui/handle/123456789/28806 https://doi.org/10.1103/PhysRevB.95.155115 |
Resumo: | The Nagaoka (U =∞) limit of the Hubbard model on a square lattice is mapped onto the itinerant-localized Kondo model at infinitely strong coupling. Such a model is well suited to perform quantum Monte Carlo (QMC) simulations to compute spin correlation functions. For periodic boundary conditions, this model is shown to exhibit no short-range ferromagnetic (FM) spin correlations at any doping δ 0.01 and at finite temperature T = 0.1t. Our simulations give no indication that there is a tendency towards ferromagnetic ordering in the ground state, with more than one hole. Employing on the other hand the open boundary conditions (or mixed boundary conditions) may result in the qualitatively different results for the thermodynamic limit depending on the way one chooses to approach this limit. These observations imply that the relevant thermodynamic limit remains unclear. |
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Ivantsov, IlyaFerraz Filho, ÁlvaroKochetov, Evgenii2020-04-16T19:17:31Z2020-04-16T19:17:31Z2017-04-11IVANTSOV, Ilya; FERRAZ FILHO, Álvaro; KOCHETOV, Evgenii. Breakdown of the Nagaoka phase at finite doping. Physical Review B, [s.l.], v. 95, n. 15, p. 1551151-1551158, 11 abr. 2017. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.95.155115. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.155115. Acesso em: 16 abr. 2020.2469-9950 (print), 2469-9969 (online)https://repositorio.ufrn.br/jspui/handle/123456789/28806https://doi.org/10.1103/PhysRevB.95.155115American Physical SocietyBreakdown of the nagaoka phaseFinite dopinBreakdown of the Nagaoka phase at finite dopinginfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleThe Nagaoka (U =∞) limit of the Hubbard model on a square lattice is mapped onto the itinerant-localized Kondo model at infinitely strong coupling. Such a model is well suited to perform quantum Monte Carlo (QMC) simulations to compute spin correlation functions. For periodic boundary conditions, this model is shown to exhibit no short-range ferromagnetic (FM) spin correlations at any doping δ 0.01 and at finite temperature T = 0.1t. Our simulations give no indication that there is a tendency towards ferromagnetic ordering in the ground state, with more than one hole. Employing on the other hand the open boundary conditions (or mixed boundary conditions) may result in the qualitatively different results for the thermodynamic limit depending on the way one chooses to approach this limit. These observations imply that the relevant thermodynamic limit remains unclear.engreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdfBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdfArtigoapplication/pdf405136https://repositorio.ufrn.br/bitstream/123456789/28806/1/BreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf41c2ca98baf637eab974e56aaa5df02aMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/28806/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.txtBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.txtExtracted texttext/plain34488https://repositorio.ufrn.br/bitstream/123456789/28806/3/BreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.txt508b15407ceca9ac04b7d4acbf65931cMD53THUMBNAILBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.jpgBreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.jpgGenerated Thumbnailimage/jpeg1758https://repositorio.ufrn.br/bitstream/123456789/28806/4/BreakdownOftheNagaokaPhaseAtFiniteDoping_2017.pdf.jpg92271e427297a4ae92ebe6310847ef00MD54123456789/288062020-05-05 00:05:15.131oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-05-05T03:05:15Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false |
dc.title.pt_BR.fl_str_mv |
Breakdown of the Nagaoka phase at finite doping |
title |
Breakdown of the Nagaoka phase at finite doping |
spellingShingle |
Breakdown of the Nagaoka phase at finite doping Ivantsov, Ilya Breakdown of the nagaoka phase Finite dopin |
title_short |
Breakdown of the Nagaoka phase at finite doping |
title_full |
Breakdown of the Nagaoka phase at finite doping |
title_fullStr |
Breakdown of the Nagaoka phase at finite doping |
title_full_unstemmed |
Breakdown of the Nagaoka phase at finite doping |
title_sort |
Breakdown of the Nagaoka phase at finite doping |
author |
Ivantsov, Ilya |
author_facet |
Ivantsov, Ilya Ferraz Filho, Álvaro Kochetov, Evgenii |
author_role |
author |
author2 |
Ferraz Filho, Álvaro Kochetov, Evgenii |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Ivantsov, Ilya Ferraz Filho, Álvaro Kochetov, Evgenii |
dc.subject.por.fl_str_mv |
Breakdown of the nagaoka phase Finite dopin |
topic |
Breakdown of the nagaoka phase Finite dopin |
description |
The Nagaoka (U =∞) limit of the Hubbard model on a square lattice is mapped onto the itinerant-localized Kondo model at infinitely strong coupling. Such a model is well suited to perform quantum Monte Carlo (QMC) simulations to compute spin correlation functions. For periodic boundary conditions, this model is shown to exhibit no short-range ferromagnetic (FM) spin correlations at any doping δ 0.01 and at finite temperature T = 0.1t. Our simulations give no indication that there is a tendency towards ferromagnetic ordering in the ground state, with more than one hole. Employing on the other hand the open boundary conditions (or mixed boundary conditions) may result in the qualitatively different results for the thermodynamic limit depending on the way one chooses to approach this limit. These observations imply that the relevant thermodynamic limit remains unclear. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017-04-11 |
dc.date.accessioned.fl_str_mv |
2020-04-16T19:17:31Z |
dc.date.available.fl_str_mv |
2020-04-16T19:17:31Z |
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.citation.fl_str_mv |
IVANTSOV, Ilya; FERRAZ FILHO, Álvaro; KOCHETOV, Evgenii. Breakdown of the Nagaoka phase at finite doping. Physical Review B, [s.l.], v. 95, n. 15, p. 1551151-1551158, 11 abr. 2017. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.95.155115. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.155115. Acesso em: 16 abr. 2020. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufrn.br/jspui/handle/123456789/28806 |
dc.identifier.issn.none.fl_str_mv |
2469-9950 (print), 2469-9969 (online) |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1103/PhysRevB.95.155115 |
identifier_str_mv |
IVANTSOV, Ilya; FERRAZ FILHO, Álvaro; KOCHETOV, Evgenii. Breakdown of the Nagaoka phase at finite doping. Physical Review B, [s.l.], v. 95, n. 15, p. 1551151-1551158, 11 abr. 2017. ISSN 2469-9969 versão online. DOI https://doi.org/10.1103/PhysRevB.95.155115. Disponível em: https://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.155115. Acesso em: 16 abr. 2020. 2469-9950 (print), 2469-9969 (online) |
url |
https://repositorio.ufrn.br/jspui/handle/123456789/28806 https://doi.org/10.1103/PhysRevB.95.155115 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
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Repositório Institucional da UFRN |
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