Quasi-1D graphene superlattices formed on high index surfaces
  We report preparation of large area quasi-1D monolayer graphene superlattices on a prototypical high index surface Cu(410)-O and characterization by Raman spectroscopy, Auger electron spectroscopy (AES), low energy electron diffraction (LEED), scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS). The periodically stepped substrate gives a 1D modulation to graphene, forming a superlattice of the same super-periodicity. Consequently the moire pattern is also quasi-1D, with a different periodicity. Scanning tunneling spectroscopy measurements revealed new Dirac points formed at the superlattice Brillouin zone boundary as predicted by theories. 
Chenfang Lin, Xiangqian Huang, Fen Ke, Chenhao Jin, Nai Tong, Xiuli   Yin, Lin Gan, Xuefeng Guo, Ruguang Zhao, Weisheng Yang...
cond-mat.mtrl-sci cond-mat.mes-hall