Protonic Metallization of the Monoclinic Phase in VO2 Films

It is shown that a stable metallic phase of monoclinic symmetry arises in a hydrogenated vanadium dioxide film at room temperature. This means that hydrogenation of a VO2 film initiates the electronic phase transition to the metallic phase, which is not accompanied with a structural transition to the tetragonal phase. DOI: 10.1134/S1063782611090089