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Article overview
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An insight into the electronic structure of graphene: from monolayer to multi-layer | Z. F. Wang
; Huaixiu Zheng
; Q. W. Shi
; Jie Chen
; Jinlong Yang
; J. G. Hou
; | Date: |
15 Mar 2007 | Subject: | Mesoscopic Systems and Quantum Hall Effect | Abstract: | In this paper, we analytically investigate the electronic structure of Bernal stacking (AB stacking) graphene evolving from monolayer (a zero-gap semiconductor with a linear Dirac-like spectrum around the Fermi energy) to multi-layer (semi-metal bulk graphite). We firstly derive a real space analytical expression for the free Green’s function (propagator) of multi-layer graphene based on the effective-mass approximation. The simulation results exhibit highly spatial anisotropy with three-fold rotational symmetry. By combining with the STM measurement of d2I/dV2 (the second derivative of current), we also provide a clear high-throughput and non-destructive method to identify graphene layers. Such a method is lacking in the emerging graphene research. | Source: | arXiv, cond-mat/0703422 | Services: | Forum | Review | PDF | Favorites |
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