Breaking of nanotube symmetry by substrate polarization

Alexey G. Petrov; Slava V. Rotkin

doi:10.1021/nl034094x

Breaking of nanotube symmetry by substrate polarization

Alexey G. Petrov, Slava V. Rotkin

Engineering Science and Mechanics

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Substrate and nanotube polarization are shown to qualitatively change 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 a [10,10] nanotube is about 50 meV in absence of other external potential.

Original language	English (US)
Pages (from-to)	701-705
Number of pages	5
Journal	Nano letters
Volume	3
Issue number	6
DOIs	https://doi.org/10.1021/nl034094x
State	Published - Jun 1 2003

All Science Journal Classification (ASJC) codes

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl034094x

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abstract = "Substrate and nanotube polarization are shown to qualitatively change 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 a [10,10] nanotube is about 50 meV in absence of other external potential.",

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AB - Substrate and nanotube polarization are shown to qualitatively change 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 a [10,10] nanotube is about 50 meV in absence of other external potential.

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Breaking of nanotube symmetry by substrate polarization

Abstract

All Science Journal Classification (ASJC) codes

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