INTERCALATION OF COBALT UNDERNEATH A MONOLAYER OF GRAPHENE ONRu(0001)

Q. Liao, H. J. Zhang, K. Wu, H. Y. Li, S. N. Bao and P. He ()
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Q. Liao: Department of Physics, Zhejiang University, Hangzhou, 310027, China
H. J. Zhang: Department of Physics, Zhejiang University, Hangzhou, 310027, China
K. Wu: Department of Physics, Zhejiang University, Hangzhou, 310027, China
H. Y. Li: Department of Physics, Zhejiang University, Hangzhou, 310027, China
S. N. Bao: Department of Physics, Zhejiang University, Hangzhou, 310027, China
P. He: Department of Physics, Zhejiang University, Hangzhou, 310027, China

Surface Review and Letters (SRL), 2012, vol. 19, issue 04, 1-5

Abstract: Scanning tunneling microscopy is used to study intercalation of cobalt underneath a graphene layer onRu(0001). Deposition of cobalt on graphene/Ru(0001)at 873 K leads to the intercalation of cobalt between the graphene layer and theRu(0001)substrate, and the intercalation is associated withCodiffusion at steps and defects. The morphology of graphene/Co/Ru(0001)shows moiré pattern, as same as that of graphene/Ru(0001). The bright areas whereCoislands exist are hcp regions of graphene/Ru(0001). The intercalatedCoislands have a pseudomorphic structure superimposed onRu(0001).

Keywords: Graphene; ruthenium; cobalt; intercalation; scanning tunneling microscopy (search for similar items in EconPapers)
Date: 2012
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DOI: 10.1142/S0218625X12500412

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