Intrinsic electron transport properties of carbon nanotube Y-junctions

被引：72

作者：

Meunier, V ^{[1
]}

Nardelli, MB

Bernholc, J

Zacharia, T

Charlier, JC

机构：

[1] Oak Ridge Natl Lab, Div Math & Comp Sci, Oak Ridge, TN 37831 USA

[2] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA

[3] Oak Ridge Natl Lab, Comp & Computat Sci Directorate, Oak Ridge, TN 37831 USA

[4] Univ Catholique Louvain, PCPM, B-1348 Louvain, Belgium

[5] Univ Catholique Louvain, CERMIN, B-1348 Louvain, Belgium

来源：

APPLIED PHYSICS LETTERS | 2002年 / 81卷 / 27期

关键词：

D O I：

10.1063/1.1533842

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electron transport properties of three-terminal carbon-nanotube junctions are investigated within the Landauer theory of quantum conductance. Using a realistic tight-binding Hamiltonian, we demonstrate that the experimentally observed rectifying behavior is not an intrinsic property of the junction, but rather of the contact geometry. When semiconducting nanotubes are connected to metallic leads, nontransmitting states are induced at the nanotube-metal interface, leading to asymmetric transmission curves and potentially rectifying behavior of the nanodevice. (C) 2002 American Institute of Physics.

引用

页码：5234 / 5236

页数：3

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