Geometrical dependence of high-bias current in multiwalled carbon nanotubes.
We have studied the high-bias transport properties of the different shells that constitute a multiwalled carbon nanotube. The current is shown to be reduced as the shell diameter is decreased or the length is increased. We assign this geometrical dependence to the competition between the electron-phonon scattering process and Zener tunneling.
Bourlon
B
B
Laboratoire de Physique de la Matière Condensée de l'Ecole Normale Supérieure, 24 rue Lhomond, 75231 Paris 05, France.
Glattli
D C
DC
Plaçais
B
B
Berroir
J M
JM
Miko
C
C
Forró
L
L
Bachtold
A
A