Inducing critical phenomena in spin chains through sparse alternating fields
- Autores
- Cerezo de la Roca, Marco Vinicio Sebastián; Rossignoli, Raúl Dante; Canosa, Norma Beatriz; Lamas, Carlos Alberto
- Año de publicación
- 2019
- Idioma
- español castellano
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We analyze the phase diagram of the exact ground state (GS) of spin-s chains with ferromagnetic XXZ couplings under n-alternating field configurations, i.e, sparse alternating fields having nodes at n−1 contiguous sites. It is shown that such systems can exhibit a non-trivial magnetic behavior, which can differ significantly from that of the standard (n = 1) alternating case and enable mechanisms for controlling their magnetic and entanglement properties. The boundary in field space of the fully aligned phase can be determined analytically ∀ n, and shows that it becomes reachable only above a threshold value of the coupling anisotropy Jz/J, which depends on n but is independent of the system size. Below this value the maximum attainable magnetization becomes much smaller. We then show that the GS can exhibit significant magnetization plateaus, persistent for large systems, at which the magnetization per site m obeys the quantization rule 2n(s −m) = integer, consistent with the Oshikawa, Yamanaka and Affleck (OYA) criterion. We also identify the emergence of field induced spin polymerization, which explains the presence of such plateaus. Entanglement and field induced frustration effects are also analyzed.
Facultad de Ciencias Exactas - Materia
-
Física
ground state (GS)
spin-s chains
sparse alternating fields - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-nd/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/75184
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Inducing critical phenomena in spin chains through sparse alternating fieldsCerezo de la Roca, Marco Vinicio SebastiánRossignoli, Raúl DanteCanosa, Norma BeatrizLamas, Carlos AlbertoFísicaground state (GS)spin-s chainssparse alternating fieldsWe analyze the phase diagram of the exact ground state (GS) of spin-s chains with ferromagnetic XXZ couplings under n-alternating field configurations, i.e, sparse alternating fields having nodes at n−1 contiguous sites. It is shown that such systems can exhibit a non-trivial magnetic behavior, which can differ significantly from that of the standard (n = 1) alternating case and enable mechanisms for controlling their magnetic and entanglement properties. The boundary in field space of the fully aligned phase can be determined analytically ∀ n, and shows that it becomes reachable only above a threshold value of the coupling anisotropy Jz/J, which depends on n but is independent of the system size. Below this value the maximum attainable magnetization becomes much smaller. We then show that the GS can exhibit significant magnetization plateaus, persistent for large systems, at which the magnetization per site m obeys the quantization rule 2n(s −m) = integer, consistent with the Oshikawa, Yamanaka and Affleck (OYA) criterion. We also identify the emergence of field induced spin polymerization, which explains the presence of such plateaus. Entanglement and field induced frustration effects are also analyzed.Facultad de Ciencias Exactas2019info: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/10915/75184spainfo:eu-repo/semantics/altIdentifier/issn/2469-9969info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.99.014409info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:13:04Zoai:sedici.unlp.edu.ar:10915/75184Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:13:05.149SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Inducing critical phenomena in spin chains through sparse alternating fields |
title |
Inducing critical phenomena in spin chains through sparse alternating fields |
spellingShingle |
Inducing critical phenomena in spin chains through sparse alternating fields Cerezo de la Roca, Marco Vinicio Sebastián Física ground state (GS) spin-s chains sparse alternating fields |
title_short |
Inducing critical phenomena in spin chains through sparse alternating fields |
title_full |
Inducing critical phenomena in spin chains through sparse alternating fields |
title_fullStr |
Inducing critical phenomena in spin chains through sparse alternating fields |
title_full_unstemmed |
Inducing critical phenomena in spin chains through sparse alternating fields |
title_sort |
Inducing critical phenomena in spin chains through sparse alternating fields |
dc.creator.none.fl_str_mv |
Cerezo de la Roca, Marco Vinicio Sebastián Rossignoli, Raúl Dante Canosa, Norma Beatriz Lamas, Carlos Alberto |
author |
Cerezo de la Roca, Marco Vinicio Sebastián |
author_facet |
Cerezo de la Roca, Marco Vinicio Sebastián Rossignoli, Raúl Dante Canosa, Norma Beatriz Lamas, Carlos Alberto |
author_role |
author |
author2 |
Rossignoli, Raúl Dante Canosa, Norma Beatriz Lamas, Carlos Alberto |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Física ground state (GS) spin-s chains sparse alternating fields |
topic |
Física ground state (GS) spin-s chains sparse alternating fields |
dc.description.none.fl_txt_mv |
We analyze the phase diagram of the exact ground state (GS) of spin-s chains with ferromagnetic XXZ couplings under n-alternating field configurations, i.e, sparse alternating fields having nodes at n−1 contiguous sites. It is shown that such systems can exhibit a non-trivial magnetic behavior, which can differ significantly from that of the standard (n = 1) alternating case and enable mechanisms for controlling their magnetic and entanglement properties. The boundary in field space of the fully aligned phase can be determined analytically ∀ n, and shows that it becomes reachable only above a threshold value of the coupling anisotropy Jz/J, which depends on n but is independent of the system size. Below this value the maximum attainable magnetization becomes much smaller. We then show that the GS can exhibit significant magnetization plateaus, persistent for large systems, at which the magnetization per site m obeys the quantization rule 2n(s −m) = integer, consistent with the Oshikawa, Yamanaka and Affleck (OYA) criterion. We also identify the emergence of field induced spin polymerization, which explains the presence of such plateaus. Entanglement and field induced frustration effects are also analyzed. Facultad de Ciencias Exactas |
description |
We analyze the phase diagram of the exact ground state (GS) of spin-s chains with ferromagnetic XXZ couplings under n-alternating field configurations, i.e, sparse alternating fields having nodes at n−1 contiguous sites. It is shown that such systems can exhibit a non-trivial magnetic behavior, which can differ significantly from that of the standard (n = 1) alternating case and enable mechanisms for controlling their magnetic and entanglement properties. The boundary in field space of the fully aligned phase can be determined analytically ∀ n, and shows that it becomes reachable only above a threshold value of the coupling anisotropy Jz/J, which depends on n but is independent of the system size. Below this value the maximum attainable magnetization becomes much smaller. We then show that the GS can exhibit significant magnetization plateaus, persistent for large systems, at which the magnetization per site m obeys the quantization rule 2n(s −m) = integer, consistent with the Oshikawa, Yamanaka and Affleck (OYA) criterion. We also identify the emergence of field induced spin polymerization, which explains the presence of such plateaus. Entanglement and field induced frustration effects are also analyzed. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019 |
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 |
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publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/75184 |
url |
http://sedici.unlp.edu.ar/handle/10915/75184 |
dc.language.none.fl_str_mv |
spa |
language |
spa |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/2469-9969 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.99.014409 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-nd/4.0/ Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) |
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SEDICI (UNLP) - Universidad Nacional de La Plata |
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