Anderson localization in semiconducting carbon nanotubes
Anderson localization in semiconducting carbon nanotubes
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DOI：
10.1016/j.physe.2007.09.047
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发表时间：
2008-03-01
影响因子：
3.3
通讯作者：
Yonezawa, Norifumi
中科院分区：
文献类型：
--
作者：
Suzuura, Hidekatsu;Yonezawa, Norifumi
我们计算了含有随机分布杂质势的半导体碳纳米管在磁场下的电导，与金属纳米管中的弹道输运相比，安德森局域化发生了。我们发现，磁通量增强电导，显示出大的负磁阻，而垂直于管轴的磁场使电导略有降低，产生小得多的正磁阻。(c) 2007 Elsevier B.V.版权所有
We have calculated the conductance in semiconducting carbon nanotubes containing randomly distributed impurity potentials under magnetic fields, where Anderson localization takes place in contrast to the ballistic transport in metallic nanotubes. We have found that the magnetic flux enhances the conductance showing large negative magnetoresistance, while the magnetic field perpendicular to the tube axis gives slight reduction of the conductance giving much smaller positive magnetoresistance. (c) 2007 Elsevier B.V. All rights reserved.