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Paper   IPM / Nano-Sciences / 11691
School of Nano Science
  Title:   Effects of inter wall hopping on the electronic properties of double-wall carbon nanotubes
  Author(s): 
1 . Rostam Moradian
2 . Ali Fathalian
  Status:   Published
  Journal: Solid State Commun.
  No.:  11-12
  Vol.:  149
  Year:  2009
  Pages:   5
  Publisher(s):   Elsevier Ltd.
  Supported by:  IPM
  Abstract:
We study effects of changing inter wall hopping on the electronic and structural properties of (n,n)@(2n,2n) and (n,0)@(2n,0) double-wall carbon nanotubes using tight-binding model. We found by switching inter-wall interactions a valley opened in the (n,n)@(2n,2n) local density of states, although both walls remained metallic. For the case of (n,0)@(2n,0) where nis not multiple of 3 a semiconducting to metallic phase transition is found, while when nis multiple of 3 both inner and outer walls remained metallic.

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