Citation: XU Ning, ZHANG Chao, KONG Fan-Jie, SHI You-Jin. Transport Properties of Corrugated Graphene Nanoribbons[J]. Acta Physico-Chimica Sinica, ;2011, 27(09): 2107-2110. doi: 10.3866/PKU.WHXB20110819 shu

Transport Properties of Corrugated Graphene Nanoribbons

1.
1. Department of Physics, Yancheng Institute of Technology, Yancheng 224051, Jiangsu Province, P. R. China;
2. Engineering Department of Airport, Xuzhou Air College, Xuzhou 221000, Jiangsu Province, P. R. China

Received Date: 11 April 2011
Available Online: 20 June 2011
Fund Project: 国家自然科学基金(10874052) (10874052) 全国优秀博士学位论文基金(200726) (200726) 江苏省自然科学基金(BK2010499) (BK2010499) 江苏省高校自然科学研究基金(11KJB140012) (11KJB140012)盐城工学院面上项目(XKY2011014)资助 (XKY2011014)

We studied the transport properties of corrugated graphene nanoribbons by the recursive Green function method. We show that in the presence of ripples the minigaps with zero conductance and minibands with conductance fluctuations form in the zigzag ribbons among the first Van Hove singularity. For the metal armchair ribbons a conductance gap is present in the vicinity of the Fermi energy, which corresponds to a metal-semiconductor transition. With the fluctuation of ripples intensifying the overall averaged conductance decreases for both the zigzag and armchair ribbons and it tends to be zero. These results are useful for a better understanding of the electronic transport properties of realistic graphene nanoribbons and will be helpful for the design of nanodevices based on graphene.
- Tight-binding model,
- Green function,
- Graphene-nanoribbon,
- Conductance
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