Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model

Autores
Gonzalez, Matías Gabriel; Ghioldi, Esteban Agustín; Gazza, Claudio Javier; Manuel, Luis Oscar; Trumper, Adolfo Emilio
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We investigate the interplay between spatial anisotropy and further exchange interactions in the spin-12Heisenberg antiferromagnetic model on a triangular lattice. We use the Schwinger boson theory by including Gaussian fluctuations above the mean-field approach. The phase diagram exhibits a strong reduction of the long-range collinear and incommensurate spiral regions with respect to the mean-field ones. This reduction is accompanied by the emergence of its short-range order counterparts, leaving an ample room for zero-flux and nematic spin-liquid regions. Remarkably, within the neighborhood of the spatially isotropic line, there is a range where the spirals are so fragile that only the commensurate 120◦Néel ones survive. The good agreement with recent variational Monte Carlo predictions gives support to the rich phase diagram induced by spatial anisotropy.
Fil: Gonzalez, Matías Gabriel. 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
Fil: Ghioldi, Esteban Agustín. 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
Fil: Gazza, Claudio Javier. 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
Fil: Manuel, Luis Oscar. 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
Fil: Trumper, Adolfo Emilio. 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
Materia
MAGNETIC FRUSTRATION
SCHWINGER BOSONS
HEISENBERG
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https://creativecommons.org/licenses/by-nc/2.5/ar/
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Consejo Nacional de Investigaciones Científicas y Técnicas
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spelling Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg modelGonzalez, Matías GabrielGhioldi, Esteban AgustínGazza, Claudio JavierManuel, Luis OscarTrumper, Adolfo EmilioMAGNETIC FRUSTRATIONSCHWINGER BOSONSHEISENBERGhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We investigate the interplay between spatial anisotropy and further exchange interactions in the spin-12Heisenberg antiferromagnetic model on a triangular lattice. We use the Schwinger boson theory by including Gaussian fluctuations above the mean-field approach. The phase diagram exhibits a strong reduction of the long-range collinear and incommensurate spiral regions with respect to the mean-field ones. This reduction is accompanied by the emergence of its short-range order counterparts, leaving an ample room for zero-flux and nematic spin-liquid regions. Remarkably, within the neighborhood of the spatially isotropic line, there is a range where the spirals are so fragile that only the commensurate 120◦Néel ones survive. The good agreement with recent variational Monte Carlo predictions gives support to the rich phase diagram induced by spatial anisotropy.Fil: Gonzalez, Matías Gabriel. 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; ArgentinaFil: Ghioldi, Esteban Agustín. 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; ArgentinaFil: Gazza, Claudio Javier. 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; ArgentinaFil: Manuel, Luis Oscar. 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; ArgentinaFil: Trumper, Adolfo Emilio. 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; ArgentinaAmerican Physical Society2020-12info: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/11336/183641Gonzalez, Matías Gabriel; Ghioldi, Esteban Agustín; Gazza, Claudio Javier; Manuel, Luis Oscar; Trumper, Adolfo Emilio; Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model; American Physical Society; Physical Review B; 102; 22; 12-2020; 1-82469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.102.224410info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.224410info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2009.05447info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:45:33Zoai:ri.conicet.gov.ar:11336/183641instacron: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 15:45:33.868CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
title Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
spellingShingle Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
Gonzalez, Matías Gabriel
MAGNETIC FRUSTRATION
SCHWINGER BOSONS
HEISENBERG
title_short Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
title_full Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
title_fullStr Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
title_full_unstemmed Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
title_sort Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model
dc.creator.none.fl_str_mv Gonzalez, Matías Gabriel
Ghioldi, Esteban Agustín
Gazza, Claudio Javier
Manuel, Luis Oscar
Trumper, Adolfo Emilio
author Gonzalez, Matías Gabriel
author_facet Gonzalez, Matías Gabriel
Ghioldi, Esteban Agustín
Gazza, Claudio Javier
Manuel, Luis Oscar
Trumper, Adolfo Emilio
author_role author
author2 Ghioldi, Esteban Agustín
Gazza, Claudio Javier
Manuel, Luis Oscar
Trumper, Adolfo Emilio
author2_role author
author
author
author
dc.subject.none.fl_str_mv MAGNETIC FRUSTRATION
SCHWINGER BOSONS
HEISENBERG
topic MAGNETIC FRUSTRATION
SCHWINGER BOSONS
HEISENBERG
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 investigate the interplay between spatial anisotropy and further exchange interactions in the spin-12Heisenberg antiferromagnetic model on a triangular lattice. We use the Schwinger boson theory by including Gaussian fluctuations above the mean-field approach. The phase diagram exhibits a strong reduction of the long-range collinear and incommensurate spiral regions with respect to the mean-field ones. This reduction is accompanied by the emergence of its short-range order counterparts, leaving an ample room for zero-flux and nematic spin-liquid regions. Remarkably, within the neighborhood of the spatially isotropic line, there is a range where the spirals are so fragile that only the commensurate 120◦Néel ones survive. The good agreement with recent variational Monte Carlo predictions gives support to the rich phase diagram induced by spatial anisotropy.
Fil: Gonzalez, Matías Gabriel. 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
Fil: Ghioldi, Esteban Agustín. 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
Fil: Gazza, Claudio Javier. 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
Fil: Manuel, Luis Oscar. 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
Fil: Trumper, Adolfo Emilio. 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
description We investigate the interplay between spatial anisotropy and further exchange interactions in the spin-12Heisenberg antiferromagnetic model on a triangular lattice. We use the Schwinger boson theory by including Gaussian fluctuations above the mean-field approach. The phase diagram exhibits a strong reduction of the long-range collinear and incommensurate spiral regions with respect to the mean-field ones. This reduction is accompanied by the emergence of its short-range order counterparts, leaving an ample room for zero-flux and nematic spin-liquid regions. Remarkably, within the neighborhood of the spatially isotropic line, there is a range where the spirals are so fragile that only the commensurate 120◦Néel ones survive. The good agreement with recent variational Monte Carlo predictions gives support to the rich phase diagram induced by spatial anisotropy.
publishDate 2020
dc.date.none.fl_str_mv 2020-12
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/11336/183641
Gonzalez, Matías Gabriel; Ghioldi, Esteban Agustín; Gazza, Claudio Javier; Manuel, Luis Oscar; Trumper, Adolfo Emilio; Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model; American Physical Society; Physical Review B; 102; 22; 12-2020; 1-8
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/183641
identifier_str_mv Gonzalez, Matías Gabriel; Ghioldi, Esteban Agustín; Gazza, Claudio Javier; Manuel, Luis Oscar; Trumper, Adolfo Emilio; Interplay between spatial anisotropy and next-nearest-neighbor exchange interactions in the triangular Heisenberg model; American Physical Society; Physical Review B; 102; 22; 12-2020; 1-8
2469-9969
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.102.224410
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.224410
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/2009.05447
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/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 12.891075

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