Extended Data Fig. 5: Thermal activation of IMT using isolated heaters.
From: Electrical control of glass-like dynamics in vanadium dioxide for data storage and processing
a, Optical micrograph of a VO2 switch integrated with two electrically isolated heaters. The scale bar corresponds to 10 μm. b, Captured thermal micrograph of the device with the heaters are triggered at their threshold voltage (18 V). The scale bar corresponds to 10 μm. c, Measured temperature over the cutline shown in part B indicating that the temperature at the middle switch (gap) considerably surpasses the IMT temperature. The measurement is done at the steady state; however, considering a sub-microsecond thermal time constant (Extended Data Fig. 1), for a 20-μs long excitation on the heaters, a thermal IMT in the middle switch is expected.
