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
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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