非掺杂半导体型碳纳米管低温电导的非线性特征

低温物理学报 , 2001, 23(2): 128-132. doi: 10.3969/j.issn.1000-3258.2001.02.009

非掺杂半导体型碳纳米管低温电导的非线性特征

张振华 ^1, , 彭景翠 ^2, , 陈小华 ^3, , 王健雄 ^4,

1.湖南大学应用物理系,长沙交通学院信息与计算科学系,

2.湖南大学应用物理系,

3.湖南大学应用物理系,

4.湖南大学应用物理系,

基金项目: 湖南省自然科学基金(9811Y2047) 湖南省教育厅科研项目国家自然科学基金(59972031)

NONLINEAR PROPERTIES OFLOW- TEMPERATURE CONDUCTANCEIN UNDOPING SEMICONDUCTINGSINGLE-WALLED CARBON NANOTUBES

依据相空间玻耳兹曼输运方程和碳纳米管的电子结构，对非掺杂单个半导体型单层碳纳米管(SWNTs)的低温电导特性进行数值计算，结果表明：SWNTs电导是量子化的，并呈现明显的非线性特征.

According to Boltzmann equation in phase space and the electronic structure of carbon nanotube, we have studied theoretically nonlinear properties of the low temperature conductance in undoping Semiconducting singlewalled carbon nanotubes(SWNTs), Calculations show that conductance of SWNT is quantized ,and exhibit remarkable nonlinear characteristics.

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