Quasi-one-dimensional graphene superlattices formed on high-index surfaces

Chenfang Lin, Xiangqian Huang, Fen Ke, Chenhao Jin, Nai Tong, Xiuli Yin, Lin Gan, Xuefeng Guo, Ruguang Zhao, Weisheng Yang, Enge Wang, and Zonghai Hu
Phys. Rev. B 89, 085416 – Published 19 February 2014

Abstract

We report preparation of large area quasi-one-dimensional (1D) monolayer graphene superlattices on a prototypical high-index surface Cu(410)-O and characterization by Raman spectroscopy, Auger electron spectroscopy, low-energy electron diffraction, scanning tunneling microscopy, and scanning tunneling spectroscopy. The periodically stepped substrate gives a 1D modulation to graphene, forming a superlattice of the same superperiodicity. Consequently, the moiré 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.

  • Figure
  • Figure
  • Figure
  • Figure
  • Received 8 December 2013

DOI:https://doi.org/10.1103/PhysRevB.89.085416

©2014 American Physical Society

Authors & Affiliations

Chenfang Lin1,*, Xiangqian Huang1,*, Fen Ke1,*, Chenhao Jin1, Nai Tong1, Xiuli Yin1, Lin Gan3, Xuefeng Guo3, Ruguang Zhao1, Weisheng Yang1, Enge Wang2,4, and Zonghai Hu1,2,†

  • 1State Key Lab for Mesoscopic Physics, School of Physics, Peking University, Beijing 100871, China
  • 2Collaborative Innovation Center for Quantum Matter, Beijing, China
  • 3College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • 4International Center for Quantum Materials, School of Physics, Peking University, Beijing, China

  • *These authors contributed equally to this work.
  • Corresponding author: zhhu@pku.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 89, Iss. 8 — 15 February 2014

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×