Current-voltage characteristics for a dual-gated device with W=35 nm and L=2 μm measured at room temperature in vacuum. (a) I–V
at constant V
= -40 V and varying V
. Select curves are shown in color and have V
values as noted in the legend, the black curves fall between these curves at 0.5 V increments. (b) G-V
at varying V
values, as noted on each curve, measured with V
=1 meV. Colored dots correspond to the gate voltage positions where the colored curves in Figure 7 (a) were measured.