“School of Nano-Sciences”
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| Paper IPM / Nano-Sciences / 11691 |
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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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