Figure 5
Calculated drain characteristics for l = 10, v
G
starting from 0.5 with decrements of 0.1 (solid lines) at the temperature (a) u = 0.1 and (b) u = 0.01. In green dashed lines the LTT. For u = 0.1 the LTT occurs at a gate voltage of 
= -0.05 and for u = 0.01 at = 0.05. (c) , and (d) σth versus characteristic length for u = 0.01 (black), u = 0.1 (red), and u = 0.2 (green).