Long-range ballistic transport of Brown-Zak fermions in graphene superlattices.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
13 Nov 2020
13 Nov 2020
Historique:
received:
23
06
2020
accepted:
30
09
2020
entrez:
14
11
2020
pubmed:
15
11
2020
medline:
15
11
2020
Statut:
epublish
Résumé
In quantizing magnetic fields, graphene superlattices exhibit a complex fractal spectrum often referred to as the Hofstadter butterfly. It can be viewed as a collection of Landau levels that arise from quantization of Brown-Zak minibands recurring at rational (p/q) fractions of the magnetic flux quantum per superlattice unit cell. Here we show that, in graphene-on-boron-nitride superlattices, Brown-Zak fermions can exhibit mobilities above 10
Identifiants
pubmed: 33188210
doi: 10.1038/s41467-020-19604-0
pii: 10.1038/s41467-020-19604-0
pmc: PMC7666116
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
5756Références
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