Joule heating induced negative differential resistance in freestanding metallic carbon nanotubes

被引：40

作者：

Kuroda, Marcelo A. ^{[1
]}

Leburton, Jean-Pierre

机构：

[1] Univ Illinois, Beckman Inst, Urbana, IL 61801 USA

[2] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[3] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL 61801 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 10期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2345244

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The features of the IV characteristics of metallic carbon nanotubes (m-CNTs) in different experimental setups are studied using semiclassical Boltzmann transport equation together with the heat dissipation equation to account for significant thermal effects at high electric bias. The model predicts that the shape of the m-CNT characteristics is basically controlled by heat removal mechanisms. In particular, the authors show that the onset of negative differential resistance in freestanding nanotubes finds its origins in strong transport nonlinearities associated with poor heat removal unlike in substrate-supported nanotubes. (c) 2006 American Institute of Physics.

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页数：3

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