Graphene on Ru(0001): Evidence for two graphene band structures
Open Access
- 3 May 2012
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 85 (19) , 195405
Abstract
High-resolution photoemission illustrates that the band structure of graphene on Ru(0001) exhibits a well-defined splitting. This splitting is largest with the graphene directly on the Ru(0001) substrate, whereas with a chemisorbed oxygen spacer layer between the graphene and the metal substrate, this splitting is considerably reduced. This splitting is attributed to a combination of chemical interactions between graphene and Ru(0001) and to screening of the former by the latter, not spin-orbit coupling.Keywords
Funding Information
- U.S. Department of Energy
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