Determination of the Intershell Conductance in Multiwalled Carbon Nanotubes
Abstract
We report on the intershell electron transport in multiwalled carbon nanotubes (MWNTs). To do this, local and nonlocal four-point measurements are used to study the current path through the different shells of a MWNT. For short electrode separations ≲1 μm the current mainly flows through the two outer shells, described by a resistive transmission line with an intershell conductance per length of ∼(10 kΩ)-1/μm. The intershell transport is tunnel type and the transmission is consistent with the estimate based on the overlap between π orbitals of neighboring shells.
- Publication:
-
Physical Review Letters
- Pub Date:
- October 2004
- DOI:
- arXiv:
- arXiv:cond-mat/0407672
- Bibcode:
- 2004PhRvL..93q6806B
- Keywords:
-
- 73.63.Fg;
- 72.80.Rj;
- 73.23.-b;
- 73.40.Gk;
- Nanotubes;
- Fullerenes and related materials;
- Electronic transport in mesoscopic systems;
- Tunneling;
- Condensed Matter - Mesoscopic Systems and Quantum Hall Effect;
- Condensed Matter - Disordered Systems and Neural Networks
- E-Print:
- 5 pages, 4 figures