FREQUENCY-DEPENDENT NONLINEAR CURRENT OSCILLATION AND CHAOTIC DYNAMICS IN SEMICONDUCTING CARBON NANOTUBES

被引：0

作者：

Wang, C. ^{[1
]}

Cao, J. C. ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, State Key Lab Funct Mat Informat, Shanghai 200050, Peoples R China

来源：

MODERN PHYSICS LETTERS B | 2010年 / 24卷 / 18期

基金：

中国国家自然科学基金;

关键词：

Chaos; terahertz; carbon nanotube; SUPERLATTICES; ELECTRONICS;

D O I：

10.1142/S0217984910024328

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have analyzed the spatio-temporal patterns of current self-oscillation under DC bias and terahertz frequency-dependent nonlinear dynamics in semiconducting single-walled zigzag carbon nanotubes (CNTs). It is found that different transport states, including periodic and chaotic, appear with the influence of an external AC signal. The global transitions between periodic and chaotic states are clearly resolved from Poincare bifurcation diagram. When the driving frequency is fixed at inverse golden mean ratio times natural frequency, the nonlinear CNT system exhibits a more complex transition behavior than at other driving frequencies.

引用

页码：1943 / 1950

页数：8