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CNT Bands Challenge Problem

Version 3
by Denis Areshkin
Version 4
by Denis Areshkin

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1 It is important to have a quantitative model describing how an interaction of the CNT with its environment (e.g. supporting substrate, other nanotubes, polymer matrix, etc.) influences CNT ability to conduct current. One possible mathematical formulation of this physical problem can be stated as follows:
3 +
In a first nearest neighbor pi-orbital tight-binding approximation let us assume that random distortion is described by random shifts of on-site Hamiltonian matrix elements <math>h_{ii}</math>.
5 the random short range defects (e.g. )
7 The article contains detailed and self-contained explanation of quantum transmission calculations. As an example providing insight on the properties of Greens functions and contact self-energies, analytical expression for localization length in randomly distorted CNT is derived (Section VIII, Eqs.(41-43)). Download: [[File(Real-Life-Problem_CNT.pdf)]], a resource for nanoscience and nanotechnology, is supported by the National Science Foundation and other funding agencies. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.