Short-wavelength charge oscillations in semiconducting carbon nanotubes

被引:1
作者
Léonard, F [1 ]
机构
[1] Sandia Natl Labs, Livermore, CA 94551 USA
来源
PHYSICA STATUS SOLIDI B-BASIC RESEARCH | 2003年 / 239卷 / 01期
关键词
D O I
10.1002/pssb.200303235
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Self-consistent tight-binding calculations for Carbon Nanotube devices have shown large oscillations of the charge from atom to atom. To explain this effect, we present a linear response theory for semiconducting carbon nanotubes subject to an external electrostatic potential perturbation. Within tight-binding theory, it is demonstrated that the large charge oscillations originate from the polyatomic nature of the unit cell. (C) 2003 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:88 / 93
页数:6
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