LAUSR

Vanadium dioxide (VO2), a correlated electron material, has received significant attentions due to its metal-insulator transition (MIT) at ~ 67 °C [1]. This transition is associated with structural phase transition from the monoclinic (M1), an insulating phase, to rutile (R), a metallic phase. This metalinsulator transision is accompanied by a noticeable resistivity, optical transparency and magnetic changes. These distinctive properties have inspired many applications such as thermo/electrochromics, Mott transistors, memristors, thermal actuators, gas sensors, strain sensors and temperature sensors. Recent efforts focus on controlling of phase transition and domain structures in finite size VO2, which results in different material properties and play a critical role in device applications.