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research article
Electrical transport in rings of single-wall nanotubes: one- dimensional localization
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 Lφ 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 strong localization, and below 0.7 K a weak antilocalization is induced by spin-orbit scattering..
Type
research article
Authors
Publication date
2000
Published in
Volume
84
Issue
19
Start page
4441
End page
4444
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
February 4, 2010
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