Locally addressable tunnel barriers within a carbon nanotube

TY - JOUR

T1 - Locally addressable tunnel barriers within a carbon nanotube

AU - Biercuk, M.

AU - Mason, N.

AU - Chow, J.

AU - M. Marcus, C.

PY - 2003/12/11

Y1 - 2003/12/11

N2 - We report the realization and characterization of independently controllable tunnel barriers within a carbon nanotube. The nanotubes are mechanically bent or kinked using an atomic force microscope, and top gates are subsequently placed near each kink. Transport measurements indicate that the kinks form gate-controlled tunnel barriers, and that gates placed away from the kinks have little or no effect on conductance. The overall conductance of the nanotube can be controlled by tuning the transmissions of either the kinks or the metal-nanotube contacts.

AB - We report the realization and characterization of independently controllable tunnel barriers within a carbon nanotube. The nanotubes are mechanically bent or kinked using an atomic force microscope, and top gates are subsequently placed near each kink. Transport measurements indicate that the kinks form gate-controlled tunnel barriers, and that gates placed away from the kinks have little or no effect on conductance. The overall conductance of the nanotube can be controlled by tuning the transmissions of either the kinks or the metal-nanotube contacts.

KW - cond-mat.mes-hall

KW - cond-mat.mtrl-sci

U2 - 10.1021/nl0486721

DO - 10.1021/nl0486721

M3 - Journal article

SN - 1530-6984

VL - 4

SP - 2499

EP - 2502

JO - Nano Letters

JF - Nano Letters

IS - 12

ER -