Journal Article

FZJ-2015-04162

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Exploring interlayer Dirac cone coupling in commensurately rotated few-layer graphene on SiC(000-1)

Mathieu, C. (Corresponding Author) ; Conrad, E. H. ; Wang, F. ; Rault, J. E. ; Feyer, V.FZJ* ; Schneider, C. M.FZJ* ; Renault, O. ; Barrett, N.

2014
Wiley Chichester [u.a.]

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Please use a persistent id in citations: doi:10.1002/sia.5541

Abstract: We investigate electronic band-structure images in reciprocal space of few-layer graphene epitaxially grown on SiC(000-1). In addition to the observation of commensurate rotation angles of the graphene layers, the k-space images recorded near the Fermi edge highlight structures originating from diffraction of the Dirac cones due to the relative rotation of adjacent layers. The 21.9° and 27° rotation angles between two sheets of graphene are responsible for a periodic pattern that can be described with a superlattice unit cells. The superlattice generates replicas of Dirac cones with smaller wave vectors, because of a Brillouin zone folding

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Contributing Institute(s):

1. Elektronische Eigenschaften (PGI-6)
2. JARA-FIT (JARA-FIT)

Research Program(s):

1. 422 - Spin-based and quantum information (POF2-422) (POF2-422)

Appears in the scientific report 2015

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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