Title

Low Bias Electron Scattering in Structure-Identified Single Wall Carbon Nanotubes: Role of Substrate Polar Phonons

Authors

Authors

B. Chandra; V. Perebeinos; S. Berciaud; J. Katoch; M. Ishigami; P. Kim; T. F. Heinz;J. Hone

Comments

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Abbreviated Journal Title

Phys. Rev. Lett.

Keywords

TRANSPORT; Physics, Multidisciplinary

Abstract

We have performed temperature-dependent electrical transport measurements on known structure single wall carbon nanotubes at low bias. The experiments show a superlinear increase in nanotube resistivity with temperature, which is in contradiction with the linear dependence expected from nanotube acoustic-phonon scattering. The measured electron mean free path is also much lower than expected, especially at medium to high temperatures (> 100 K). A theoretical model that includes scattering due to surface polar phonon modes of the substrates reproduces the experiments very well. The role of surface phonons is further confirmed by resistivity measurements of nanotubes on aluminum nitride.

Journal Title

Physical Review Letters

Volume

107

Issue/Number

14

Publication Date

1-1-2011

Document Type

Article

Language

English

First Page

4

WOS Identifier

WOS:000295328200009

ISSN

0031-9007

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