Vibrational effects in the linear conductance of carbon nanotubes

被引：17

作者：

Gheorghe, M ^{[1
]}

Gutiérrez, R

Ranjan, N

Pecchia, A

Di Carlo, A

Cuniberti, G

机构：

[1] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[2] Tech Univ Dresden, Inst Phys Chem, D-01069 Dresden, Germany

[3] Univ Roma Tor Vergata, INFM, I-00133 Rome, Italy

[4] Univ Roma Tor Vergata, Dipartimento Ingn Elettron, I-00133 Rome, Italy

来源：

EUROPHYSICS LETTERS | 2005年 / 71卷 / 03期

关键词：

D O I：

10.1209/epl/i2005-10091-5

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the influence of structural lattice fluctuations on the elastic electron transport in single-wall carbon nanotubes within a density-functional-based scheme. In the linear-response regime, the linear conductance is calculated via configurational averages over the distorted lattice. Results obtained from a frozen-phonon approach as well as from molecular-dynamics simulations are compared. We further suggest that the effect of structural fluctuations can be qualitatively captured by the Anderson model with bond disorder. The influence of individual vibrational modes on the electronic transport is discussed as well as the role of zero-point fluctuations.

引用

页码：438 / 444

页数：7

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