中国物理B ›› 2007, Vol. 16 ›› Issue (11): 3151-3153.doi: 10.1088/1009-1963/16/11/001

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Formation of graphene on Ru(0001) surface

潘毅1, 时东霞1, 高鸿钧2   

  1. (1)Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China; (2)Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • 收稿日期:2007-05-17 修回日期:2007-06-01 出版日期:2007-11-20 发布日期:2007-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90406022 and 10674159).

Formation of graphene on Ru(0001) surface

Pan Yi(潘毅), Shi Dong-Xia(时东霞), and Gao Hong-Jun(高鸿钧)†   

  1. Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2007-05-17 Revised:2007-06-01 Online:2007-11-20 Published:2007-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 90406022 and 10674159).

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摘要： 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.

关键词: graphene, Ru (0001), Moir\'{e} pattern, STM

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 Moiré 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.

Key words: graphene, Ru (0001), Moiré pattern, STM

中图分类号:  (Nucleation and growth)

  • 68.55.A-
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)