Microwave transport in metallic single-walled carbon nanotubes.
Nano Lett
; 5(7): 1403-6, 2005 Jul.
Article
in En
| MEDLINE
| ID: mdl-16178247
ABSTRACT
The dynamical conductance of electrically contacted single-walled carbon nanotubes is measured from dc to 10 GHz as a function of source-drain voltage in both the low-field and high-field limits. The ac conductance of the nanotube itself is found to be equal to the dc conductance over the frequency range studied for tubes in both the ballistic and diffusive limit. This clearly demonstrates that nanotubes can carry high-frequency currents at least as well as dc currents over a wide range of operating conditions. Although a detailed theoretical explanation is still lacking, we present a phenomenological model of the ac impedance of a carbon nanotube in the presence of scattering that is consistent with these results.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Nanotubes, Carbon
/
Electrochemistry
/
Electromagnetic Phenomena
/
Gold
/
Microwaves
/
Models, Chemical
Type of study:
Evaluation_studies
/
Qualitative_research
Language:
En
Journal:
Nano Lett
Year:
2005
Document type:
Article
Affiliation country:
United States
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA