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Chin. Phys., 2007, Vol. 16(11): 3151-3153    DOI: 10.1088/1009-1963/16/11/001
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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
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.
Keywords:  STM      graphene      Ru (0001)      Moir\'{e} pattern  
Received:  17 May 2007      Revised:  01 June 2007      Published:  20 November 2007
PACS:  68.55.A- (Nucleation and growth)  
  68.37.Ef (Scanning tunneling microscopy (including chemistry induced with STM))  
  68.47.De (Metallic surfaces)  
  81.40.Ef (Cold working, work hardening; annealing, post-deformation annealing, quenching, tempering recovery, and crystallization)  
Fund: Project supported by the National Natural Science Foundation of China (Grant Nos 90406022 and 10674159).

Cite this article: 

Pan Yi, Shi Dong-Xia, Gao Hong-Jun Formation of graphene on Ru(0001) surface 2007 Chin. Phys. 16 3151

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