Observation of discrete quantum levels in multi-wall carbon nanotube quantum dots

被引：2
|
作者：
Tsuya, D
Suzuki, M
Moriyama, S
Aoyagi, Y
Ishibashi, K
机构：
[1] RIKEN, Inst Phys & Chem Res, Adv Dev Lab, Wako, Saitama 3510198, Japan
[2] Tokyo Inst Technol, Interdisciplinary Grad Sch Sci & Technol, Midori Ku, Yokohama, Kanagawa 2268503, Japan
[3] Japan Sci & Technol, CREST, Kawaguchi, Saitama 3320012, Japan
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2004年 / 24卷 / 1-2期
关键词：
quantum dots; quantum levels; carbon nanotubes; Ar beam irradiation;
D O I：
10.1016/j.physe.2004.04.023
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Quantum dots with a size less than 100 nm have been fabricated in multi-wall carbon nanotubes (MWNTs) by using the local Ar beam irradiation technique for tunnel barrier formation. The electrical transport measurement has been carried out at liquid helium temperatures, and the typical Coulomb blockade characteristics have been observed. The most striking observation is the clear indication of excited states, which is not usual for MWNTs with diffusive nature. The present result originates from the shorter dot size than the mean free path in the MWNT. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：50 / 53
页数：4
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