Anharmonicity and Doping Melt the Charge Density Wave in Single-Layer TiSe
Anharmonicity
Charge density waves
Density functional theory
Dichalcogenides
Journal
Nano letters
ISSN: 1530-6992
Titre abrégé: Nano Lett
Pays: United States
ID NLM: 101088070
Informations de publication
Date de publication:
08 Jul 2020
08 Jul 2020
Historique:
pubmed:
5
6
2020
medline:
5
6
2020
entrez:
5
6
2020
Statut:
ppublish
Résumé
Low-dimensional systems with a vanishing band gap and a large electron-hole interaction have been proposed to be unstable toward exciton formation. As the exciton binding energy increases in low dimension, conventional wisdom suggests that excitonic insulators should be more stable in 2D than in 3D. Here we study the effects of the electron-hole interaction and anharmonicity in single-layer TiSe
Identifiants
pubmed: 32496779
doi: 10.1021/acs.nanolett.0c00597
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM