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Comparison of electronic structure and template function of single-layer graphene and a hexagonal boron nitride nanomesh on Ru(0001)

Brugger, T; Günther, S; Wang, B; Dil, J H; Bocquet, M L; Osterwalder, J; Wintterlin, J; Greber, T (2009). Comparison of electronic structure and template function of single-layer graphene and a hexagonal boron nitride nanomesh on Ru(0001). Physical Review. B, Condensed Matter and Materials Physics, 79(4):045407.

Abstract

The structure of a single-layer graphene on Ru(0001) is compared with that of a single-layer hexagonal boron nitride nanomesh on Ru(0001). Both are corrugated sp2 hybridized networks and display a π band gap at the K̅ point of their 1×1 Brillouin zone. In contrast to h-BN/Ru(0001), g/Ru(0001) has a distinct Fermi surface. Together with the band structure measurements this indicates that 0.1e per 1×1 unit cell are transferred from the Ru substrate to the graphene. Photoemission from adsorbed xenon on g/Ru(0001) identifies two Xe 5p1/2 lines, separated by 240 meV, which reveals a corrugated electrostatic potential energy surface like on h-BN/Rh(111). These two Xe species are related to the topography of the template and have different desorption energies.

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Scopus Subject Areas:Physical Sciences > Electronic, Optical and Magnetic Materials
Physical Sciences > Condensed Matter Physics
Language:English
Date:2009
Deposited On:05 Jan 2010 14:05
Last Modified:03 Nov 2024 02:38
Publisher:American Physical Society
ISSN:1098-0121
OA Status:Green
Publisher DOI:https://doi.org/10.1103/PhysRevB.79.045407
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