Figure 3: Electronic state of the metal-like monoclinic VO₂ at room temperature.

(a) Sketch of the experimental setup of DFM. (b) Topographical image of an AA-treated VO₂ nanobeam. (c) Dielectric response of AA-treated VO₂ nanobeam. (d) Schematic simulation of the metal-like monoclinic VO₂ with high charge-carrier density.