Mott Switching and Structural Transition in the Metal Phase of VO₂ Nanodomain

$VO_2$ undergoes the insulator-metal transition (IMT) and monoclinic-rutile structural phase (SPT) near $67^oC$. The IMT switching has many applications. However, there is an unresolved issue whether a Mott or Peierls transition. This complication caused by metal insulator coexistence, which inherent property of region. Thus, acquired data in region are averaged over two phases experiments. We overcome probing electronic state monoclinic structure introducing model that accounts for coexisting phases. reveal non-distorted nanodomain between $55-63^oC$, distortion-assisted SPT above $60^oC$.