  Local effects of multiple electrostatic gates placed beneath carbon nanotubes
grown by chemical vapor deposition (CVD) are reported. Single-walled carbon
nanotubes were grown by CVD from Fe catalyst islands across thin Mo "finger
gates" (150 x 10nm). Prior to tube growth, several finger gates were patterned
lithogrpahically and subsequently coated with a patterned high-k dielectric
using low-temperature atomic layer deposition. Transport measurements
demonstrate that local finger gates have a distinct effect from a global
backgate.
