Figure 4
From: Electron transport of WS2 transistors in a hexagonal boron nitride dielectric environment

The top colour map shows the measured differential conductance plotted against gate voltage and source drain at T = 4.2 K for the same representative 4L-WS2 on h-BN discussed in Figure 3.
The bottom plot is a graph of the conductivity at T = 4.2 K while the inset is a graph of five differential conductance curves plotted from Vg = 61.52 V up to 62 V highlighted by the dashed lines A and B respectively and in steps of 96 mV of gate voltage.