Robust three-dimensional type-II Dirac semimetal state in SrAgBi.
Electronic properties and materials
Topological insulators
Journal
npj quantum materials
ISSN: 2397-4648
Titre abrégé: NPJ Quantum Mater
Pays: England
ID NLM: 101770235
Informations de publication
Date de publication:
2023
2023
Historique:
received:
28
10
2022
accepted:
24
03
2023
medline:
1
1
2023
pubmed:
1
1
2023
entrez:
26
4
2024
Statut:
ppublish
Résumé
Topological semimetals such as Dirac, Weyl or nodal line semimetals are widely studied for their peculiar properties including high Fermi velocities, small effective masses and high magnetoresistance. When the Dirac cone is tilted, exotic phenomena could emerge whereas materials hosting such states are promising for photonics and plasmonics applications. Here we present evidence that SrAgBi is a spin-orbit coupling-induced type-II three-dimensional Dirac semimetal featuring tilted Dirac cone at the Fermi energy. Near charge compensation and Fermi surface characteristics are not much perturbed by 7% of vacancy defects on the Ag atomic site, suggesting that SrAgBi could be a material of interest for observation of robust optical and spintronic topological quantum phenomena.
Identifiants
pubmed: 38666243
doi: 10.1038/s41535-023-00549-8
pii: 549
pmc: PMC11041807
doi:
Types de publication
Journal Article
Langues
eng
Pagination
20Informations de copyright
© The Author(s) 2023.
Déclaration de conflit d'intérêts
Competing interestsThe authors declare no competing interests.