Activation of topological insulator phase in kagomé-type bilayers by interlayer coupling: the cases of Ni(CO)4 and Pd(CO)4

Página do item simplificado
dc.creatorOrlando José Silveira Júnior
dc.creatorGuilherme Almeida Silva Ribeiro
dc.creatorHelio Chacham
dc.date.accessioned2024-02-19T13:07:44Z
dc.date.accessioned2025-09-08T22:55:11Z
dc.date.available2024-02-19T13:07:44Z
dc.date.issued2020
dc.description.sponsorshipCNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico
dc.description.sponsorshipFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas Gerais
dc.description.sponsorshipCAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
dc.description.sponsorshipINCT – Instituto nacional de ciência e tecnologia (Antigo Instituto do Milênio)
dc.identifier.doihttps://doi.org/10.1063/1.5134834
dc.identifier.issn1077-3118
dc.identifier.urihttps://hdl.handle.net/1843/64158
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofApplied Physics Letters
dc.rightsAcesso Restrito
dc.subjectTeoria do funcional da densidade
dc.subjectIsoladores topológicos
dc.subject.otherDensity functional theory
dc.subject.otherTight-binding model
dc.subject.otherFirst-principle calculations
dc.subject.otherQuantum Hall effect
dc.subject.other2D materials
dc.subject.otherTopological insulator
dc.titleActivation of topological insulator phase in kagomé-type bilayers by interlayer coupling: the cases of Ni(CO)4 and Pd(CO)4
dc.typeArtigo de periódico
local.citation.epage103103-5
local.citation.issue10
local.citation.spage103103-1
local.citation.volume116
local.description.resumoWe predict that a 2D kagomé-type topological insulator (TI) can be built as a bilayer of a single-layer material that is not a TI. We demonstrate this through first-principles calculations of a class of C6 O6 and C6ðNHÞ6 based 2D metal-organic frameworks. We find that minimum-energy bilayers of two compounds of this class, with stoichiometries NiðCOÞ4 and PdðCOÞ4 , are intrinsic topological insulators although their isolated single-layer components are trivial metals. The first-principles results for the single-layer and bilayer systems are reproduced by tight-binding models. The simplicity of the models suggests that other bilayer TI systems of this type should exist, not necessarily composed of metal-organic frameworks, as long as they are composed of kagomé-type systems in a AA stacking.
local.identifier.orcidhttps://orcid.org/0000-0002-0403-9485
local.identifier.orcidhttps://orcid.org/0000-0002-4050-9560
local.identifier.orcidhttps://orcid.org/0000-0001-5041-9094
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://pubs.aip.org/aip/apl/article/116/10/103103/38794/Activation-of-topological-insulator-phase-in

Arquivos

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG