Electrical transport in rings of single-wall nanotubes: One-dimensional localization

被引：141
|
作者：
Shea, HR [1 ]
Martel, R [1 ]
Avouris, P [1 ]
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 19期
关键词：
D O I：
10.1103/PhysRevLett.84.4441
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report low-temperature magnetoresistance (MR) measurements on rings of single-wall carbon nanotubes. Negative MR characteristic of weak one-dimensional localization is clearly observed from 3.0 to 60 K, and the coherence length L-phi, is obtained as a function of temperature. The dominant dephasing mechanism is identified as electron-electron scattering. Below 1 K, we observe a transition from weak to st,strong localization, and below 0.7 K a weak antilocalization is induced by spin-orbit scattering.
引用
收藏
页码：4441 / 4444
页数：4
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