Investigation of the metal-insulator transition in VO2 for electronic switches with sub-1mV/decade steep subthreshold slope

We report a thorough investigation of the electrically-induced metal-insulator transition in vanadium dioxide (VO
₂
) for abrupt switching in 2-terminal devices (0.24 mV/dec at 25 °C, 0.38 mV/dec at 50 °C). We exploit the electrothermal actuation model based on Joule heating to model and predict the low temperature dependence of the slope in VO
₂
switches.