Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice

Autores
Zhang, Hao; Lamas, Carlos Alberto; Arlego, Marcelo José Fabián; Brenig, Wolfram
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the spin-1/2 Heisenberg antiferromagnet on a bilayer honeycomb lattice including interlayer frustration. Using a set of complementary approaches, namely, Schwinger bosons, dimer series expansion, bond operators, and exact diagonalization, we map out the quantum phase diagram. Analyzing ground-state energies and elementary excitation spectra, we find four distinct phases, corresponding to three collinear magnetic long-range ordered states, and one quantum disordered interlayer dimer phase. We detail that the latter phase is adiabatically connected to an exact singlet product ground state of the bilayer, which exists along a line of maximum interlayer frustration. The order within the remaining three phases will be clarified.
Instituto de Física La Plata
Materia
Física
magnetismo cuántico
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nd/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/63842
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/63842
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb latticeZhang, HaoLamas, Carlos AlbertoArlego, Marcelo José FabiánBrenig, WolframFísicamagnetismo cuánticoWe study the spin-1/2 Heisenberg antiferromagnet on a bilayer honeycomb lattice including interlayer frustration. Using a set of complementary approaches, namely, Schwinger bosons, dimer series expansion, bond operators, and exact diagonalization, we map out the quantum phase diagram. Analyzing ground-state energies and elementary excitation spectra, we find four distinct phases, corresponding to three collinear magnetic long-range ordered states, and one quantum disordered interlayer dimer phase. We detail that the latter phase is adiabatically connected to an exact singlet product ground state of the bilayer, which exists along a line of maximum interlayer frustration. The order within the remaining three phases will be clarified.Instituto de Física La Plata2016-06-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/63842enginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.93.235150info:eu-repo/semantics/altIdentifier/issn/2469-9969info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.93.235150info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nd/4.0/Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-03T10:41:03Zoai:sedici.unlp.edu.ar:10915/63842Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-03 10:41:04.37SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
title Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
spellingShingle Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
Zhang, Hao
Física
magnetismo cuántico
title_short Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
title_full Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
title_fullStr Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
title_full_unstemmed Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
title_sort Quantum phase diagram of a frustrated antiferromagnet on the bilayer honeycomb lattice
dc.creator.none.fl_str_mv Zhang, Hao
Lamas, Carlos Alberto
Arlego, Marcelo José Fabián
Brenig, Wolfram
author Zhang, Hao
author_facet Zhang, Hao
Lamas, Carlos Alberto
Arlego, Marcelo José Fabián
Brenig, Wolfram
author_role author
author2 Lamas, Carlos Alberto
Arlego, Marcelo José Fabián
Brenig, Wolfram
author2_role author
author
author
dc.subject.none.fl_str_mv Física
magnetismo cuántico
topic Física
magnetismo cuántico
dc.description.none.fl_txt_mv We study the spin-1/2 Heisenberg antiferromagnet on a bilayer honeycomb lattice including interlayer frustration. Using a set of complementary approaches, namely, Schwinger bosons, dimer series expansion, bond operators, and exact diagonalization, we map out the quantum phase diagram. Analyzing ground-state energies and elementary excitation spectra, we find four distinct phases, corresponding to three collinear magnetic long-range ordered states, and one quantum disordered interlayer dimer phase. We detail that the latter phase is adiabatically connected to an exact singlet product ground state of the bilayer, which exists along a line of maximum interlayer frustration. The order within the remaining three phases will be clarified.
Instituto de Física La Plata
description We study the spin-1/2 Heisenberg antiferromagnet on a bilayer honeycomb lattice including interlayer frustration. Using a set of complementary approaches, namely, Schwinger bosons, dimer series expansion, bond operators, and exact diagonalization, we map out the quantum phase diagram. Analyzing ground-state energies and elementary excitation spectra, we find four distinct phases, corresponding to three collinear magnetic long-range ordered states, and one quantum disordered interlayer dimer phase. We detail that the latter phase is adiabatically connected to an exact singlet product ground state of the bilayer, which exists along a line of maximum interlayer frustration. The order within the remaining three phases will be clarified.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-27
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/63842
url http://sedici.unlp.edu.ar/handle/10915/63842
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.93.235150
info:eu-repo/semantics/altIdentifier/issn/2469-9969
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.93.235150
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nd/4.0/
Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nd/4.0/
Creative Commons Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.13397

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