Electronic transport properties of metallic single-walled carbon nanotubes
Yan Xiao-Honga, Xiao Yanga, Cao Jue-Xianb, Ding Jian-Wenb
a Department of Physics, Xiangtan University, Xiangtan 411105, China; b Department of Physics, Xiangtan University, Xiangtan 411105, China; Institute of Mechanics and Material Engineering, Xiangtan University, Xiangtan 411105, China
Abstract We have calculated the differential conductance of metallic carbon nanotubes by the scatter matrix method. It is found that the differential conductance of metallic nanotube-based devices oscillates as a function of the bias voltage between the two leads and the gate voltage. Oscillation period T is directly proportional to the reciprocal of nanotube length. In addition, we found that electronic transport properties are sensitive to variation of the length of the nanotube.
Received: 04 November 2002
Published: 16 March 2005
PACS:
73.63.Fg
(Nanotubes)
02.10.Yn
(Matrix theory)
Fund: Project supported by the National Key Basic Research Special Foundation of China (Grant No 1999-0645-4500), by Scientific Research Fund of Hunan Provincial Education Department (Grant No 02C572), and partly by the Science & Technology Foundation for Young Researchers of Hunan Province, China (Grant Nos 00JJY2002 and 00JZY2138).
Cite this article:
Cao Jue-Xian, Yan Xiao-Hong, Xiao Yang, Ding Jian-Wen Electronic transport properties of metallic single-walled carbon nanotubes 2003 Chin. Phys. 12 1440
