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| Formation of graphene on Ru(0001) surface |
| Pan Yia, Shi Dong-Xiaa, Gao Hong-Junb |
| a Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; b Physics and Devices Laboratory, Institute of
Physics, Chinese Academy of Sciences, Beijing 100080, China |
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Abstract We report on the formation of a graphene monolayer on a Ru(0001)
surface by annealing the Ru(0001) crystal. The samples are
characterized by scanning tunnelling microscopy (STM) and Auger
electron spectroscopy (AES). STM images show that the Moir\'{e}
pattern is caused by the graphene layer mismatched with the
underlying Ru(0001) surface and has an $N\times N$ superlattice. It
is further found that the graphene monolayer on a Ru(0001) surface is
very stable at high temperatures. Our results provide a simple and
convenient method to produce a graphene monolayer on the Ru(0001)
surface, which is used as a template for fabricating functional
nanostructures needed in future nano devices and catalysis.
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Received: 17 May 2007
Published: 20 November 2007
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| PACS: |
68.55.A-
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(Nucleation and growth)
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68.37.Ef
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(Scanning tunneling microscopy (including chemistry induced with STM))
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68.47.De
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(Metallic surfaces)
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81.40.Ef
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(Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization)
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| Fund:Project supported by
the National Natural Science Foundation of China (Grant Nos 90406022
and 10674159). |
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2007, Vol. 16 
