Noncollinear exchange interaction in transition metal dichalcogenide edges

Autores
Ávalos Ovando, Oscar; Mastrogiuseppe, Diego Martín; Ulloa, Sergio E.
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap of the bulk structure have a strong one-dimensional (1D) character, localized on the edges of the crystallite. This results in exchange interactions with 1/r (or slower) decay with distance r, similar to other 1D systems. Most interestingly, however, the strong spin-orbit interaction in these materials results in sizable noncollinear Dzyaloshinskii-Moriya interactions between impurities, comparable in size to the usual Ising and in-plane components. Varying the relevant Fermi energy by doping or gating may allow one to modulate the effective interactions, controlling the possible helical ground state configurations of multiple impurities.
Fil: Ávalos Ovando, Oscar. Ohio University; Estados Unidos
Fil: Mastrogiuseppe, Diego Martín. 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. Ohio University; Estados Unidos
Fil: Ulloa, Sergio E.. Ohio University; Estados Unidos
Materia
TRANSITION METAL DICHALCOGENIDES
RKKY INTERACTION
EDGE STATES
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:11336/17510
Acceder
id CONICETDig_60f6a206a6dbf71de7a25e1b237ce931
oai_identifier_str oai:ri.conicet.gov.ar:11336/17510
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Noncollinear exchange interaction in transition metal dichalcogenide edgesÁvalos Ovando, OscarMastrogiuseppe, Diego MartínUlloa, Sergio E.TRANSITION METAL DICHALCOGENIDESRKKY INTERACTIONEDGE STATEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap of the bulk structure have a strong one-dimensional (1D) character, localized on the edges of the crystallite. This results in exchange interactions with 1/r (or slower) decay with distance r, similar to other 1D systems. Most interestingly, however, the strong spin-orbit interaction in these materials results in sizable noncollinear Dzyaloshinskii-Moriya interactions between impurities, comparable in size to the usual Ising and in-plane components. Varying the relevant Fermi energy by doping or gating may allow one to modulate the effective interactions, controlling the possible helical ground state configurations of multiple impurities.Fil: Ávalos Ovando, Oscar. Ohio University; Estados UnidosFil: Mastrogiuseppe, Diego Martín. 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. Ohio University; Estados UnidosFil: Ulloa, Sergio E.. Ohio University; Estados UnidosAmerican Physical Society2016-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17510Ávalos Ovando, Oscar; Mastrogiuseppe, Diego Martín; Ulloa, Sergio E.; Noncollinear exchange interaction in transition metal dichalcogenide edges; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 93; 16; 4-20161098-0121enginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.93.161404info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1602.02150info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:40:54Zoai:ri.conicet.gov.ar:11336/17510instacron: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 15:40:55.196CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Noncollinear exchange interaction in transition metal dichalcogenide edges
title Noncollinear exchange interaction in transition metal dichalcogenide edges
spellingShingle Noncollinear exchange interaction in transition metal dichalcogenide edges
Ávalos Ovando, Oscar
TRANSITION METAL DICHALCOGENIDES
RKKY INTERACTION
EDGE STATES
title_short Noncollinear exchange interaction in transition metal dichalcogenide edges
title_full Noncollinear exchange interaction in transition metal dichalcogenide edges
title_fullStr Noncollinear exchange interaction in transition metal dichalcogenide edges
title_full_unstemmed Noncollinear exchange interaction in transition metal dichalcogenide edges
title_sort Noncollinear exchange interaction in transition metal dichalcogenide edges
dc.creator.none.fl_str_mv Ávalos Ovando, Oscar
Mastrogiuseppe, Diego Martín
Ulloa, Sergio E.
author Ávalos Ovando, Oscar
author_facet Ávalos Ovando, Oscar
Mastrogiuseppe, Diego Martín
Ulloa, Sergio E.
author_role author
author2 Mastrogiuseppe, Diego Martín
Ulloa, Sergio E.
author2_role author
author
dc.subject.none.fl_str_mv TRANSITION METAL DICHALCOGENIDES
RKKY INTERACTION
EDGE STATES
topic TRANSITION METAL DICHALCOGENIDES
RKKY INTERACTION
EDGE STATES
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 the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap of the bulk structure have a strong one-dimensional (1D) character, localized on the edges of the crystallite. This results in exchange interactions with 1/r (or slower) decay with distance r, similar to other 1D systems. Most interestingly, however, the strong spin-orbit interaction in these materials results in sizable noncollinear Dzyaloshinskii-Moriya interactions between impurities, comparable in size to the usual Ising and in-plane components. Varying the relevant Fermi energy by doping or gating may allow one to modulate the effective interactions, controlling the possible helical ground state configurations of multiple impurities.
Fil: Ávalos Ovando, Oscar. Ohio University; Estados Unidos
Fil: Mastrogiuseppe, Diego Martín. 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. Ohio University; Estados Unidos
Fil: Ulloa, Sergio E.. Ohio University; Estados Unidos
description We study the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap of the bulk structure have a strong one-dimensional (1D) character, localized on the edges of the crystallite. This results in exchange interactions with 1/r (or slower) decay with distance r, similar to other 1D systems. Most interestingly, however, the strong spin-orbit interaction in these materials results in sizable noncollinear Dzyaloshinskii-Moriya interactions between impurities, comparable in size to the usual Ising and in-plane components. Varying the relevant Fermi energy by doping or gating may allow one to modulate the effective interactions, controlling the possible helical ground state configurations of multiple impurities.
publishDate 2016
dc.date.none.fl_str_mv 2016-04
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/11336/17510
Ávalos Ovando, Oscar; Mastrogiuseppe, Diego Martín; Ulloa, Sergio E.; Noncollinear exchange interaction in transition metal dichalcogenide edges; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 93; 16; 4-2016
1098-0121
url http://hdl.handle.net/11336/17510
identifier_str_mv Ávalos Ovando, Oscar; Mastrogiuseppe, Diego Martín; Ulloa, Sergio E.; Noncollinear exchange interaction in transition metal dichalcogenide edges; American Physical Society; Physical Review B: Condensed Matter and Materials Physics; 93; 16; 4-2016
1098-0121
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.93.161404
info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1602.02150
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 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
_version_ 1846083521404207104
score 13.22299

Publicaciones similares