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Breaking of Nanotube Symmetry by Substrate Polarization

Alexey G. Petrov·Slava V. Rotkin
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Abstract

Substrate and nanotube polarization are shown to change qualitatively a nanotube bandstructure. The effect is studied in a linear approximation in an external potential which causes the changes. A work function difference between the nanotube and gold surface is estimated to be large enough to break the band symmetry and lift a degeneracy of a lowest but one subband of a metallic nanotube. This subband splitting for [10,10] nanotube is about 50 meV in absence of other external potential.

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Alexey G. Petrov, Slava V. Rotkin. 2003-04-16. Breaking of Nanotube Symmetry by Substrate Polarization. https://doi.org/10.1021/nl034094x

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