Figure 2
From: Split-gated point-contact for electrostatic confinement of transport in MoS2/h-BN hybrid structures
(a) Pinch-off characteristics at 4 K (blue), 77 K (green) and 300 K (red) where the on-state current is kept as 50 nA at VBG = 10 V with illustration (i), (ii) and (iii) explaining the different regimes in the transport. The parabolas represent the electrostatic confinement of charge carriers in the point-contact. The inset shows pinch-off curves taken in the forward and the reverse direction showing no hysteresis (b) I-V curves as a function of VSG at VBG = 10 V corresponding to different regimes shown in (a). VSG is varied from −8 V (red) to 0 V (violet), the applied VSG values and the corresponding transport regimes are labelled. (c) Pinch-off characteristics with an on-state current of 1.7 μA showing a high on-off ratio >106.
