Electronic structure of kinked multiwalled carbon nanotubes

被引:58
|
作者
Tekleab, D [1 ]
Czerw, R
Carroll, DL
Ajayan, PM
机构
[1] Clemson Univ, Dept Phys & Astron, Clemson, SC 29634 USA
[2] Rensselaer Polytech Inst, Dept Mat Sci & Engn, Troy, NY 12180 USA
关键词
D O I
10.1063/1.126717
中图分类号
O59 [应用物理学];
学科分类号
摘要
Changes in the local density of states (LDOS) of kinked multiwalled carbon nanotubes have been studied using scanning tunneling microscopy and spectroscopy (STM)/(STS). The measured STS spectra in the inelastically kinked region show that the LDOS is asymmetric about the Fermi level, while the spectra from regions away from the kink exhibit the usual symmetric LDOS that corresponds to perfect tubes. In the kinked region, the distribution of the unoccupied states is suppressed; this suppression of the conduction band states becomes unnoticeable similar to 1.66 nm from the kink center. (C) 2000 American Institute of Physics. [S0003-6951(00)00724-5].
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页码:3594 / 3596
页数:3
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