Fabrication of a single layer graphene by copper intercalation on a SiC(0001) surface
- Department of Electronics Engineering and Computer Science, Fukuoka University, Fukuoka 814-0180 (Japan)
- Department of Applied Physics, Fukuoka University, Fukuoka 814-0180 (Japan)
- Synchrotron Light Application Center, Saga University, 1 Honjo, Saga 840-8502 (Japan)
Cu atoms deposited on a zero layer graphene grown on a SiC(0001) substrate, intercalate between the zero layer graphene and the SiC substrate after the thermal annealing above 600 °C, forming a Cu-intercalated single layer graphene. On the Cu-intercalated single layer graphene, a graphene lattice with superstructure due to moiré pattern is observed by scanning tunneling microscopy, and specific linear dispersion at the K{sup ¯} point as well as a characteristic peak in a C{sub 1s} core level spectrum, which is originated from a free-standing graphene, is confirmed by photoemission spectroscopy. The Cu-intercalated single layer graphene is found to be n-doped.
- OSTI ID:
- 22283237
- Journal Information:
- Applied Physics Letters, Vol. 104, Issue 5; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- English
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