Negative differential resistance in parallel single-walled carbon nanotube contacts

被引：32

作者：

Liu, Qihang ^{[1
,2
]}

Luo, Guangfu ^{[1
,2
]}

Qin, Rui ^{[1
,2
]}

Li, Hong ^{[1
,2
]}

Yan, Xin ^{[1
,2
]}

Xu, Chengyong ^{[1
,2
]}

Lai, Lin ^{[1
,2
]}

Zhou, Jing ^{[1
,2
]}

Hou, Shimin ^{[3
]}

Wang, Enge ^{[1
,2
]}

Gao, Zhengxiang ^{[1
,2
]}

Lu, Jing ^{[1
,2
]}

机构：

[1] Peking Univ, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China

[2] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[3] Peking Univ, Dept Elect, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW B | 2011年 / 83卷 / 15期

关键词：

TRANSPORT-PROPERTIES; MOLECULAR JUNCTION; ORGANIC-MOLECULES; AB-INITIO; CONDUCTANCE; DEVICES; SYSTEMS; STATES;

D O I：

10.1103/PhysRevB.83.155442

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on first-principles calculations, we investigate the electron transport properties of parallel single-walled carbon nanotube contact. A significant negative differential resistance (NDR) behavior is found due to staggered electron gratings in energy space and standing waves in real space on the two tubes induced by bias. Such a NDR effect is robust against the contact length, the tube diameter, the shape of the end, and the difference in the two electrodes. Because no bridging molecule is used, the structure of this NDR device is simpler compared with ordinary molecular NDR devices. Our findings are expected to promote the discovery of more NDR devices composed of only two electrodes in parallel contact.

引用

页数：7

共 31 条

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