Abstract
Abstract A complex character of the mechanism of thermal phase transformations from the insulating phase to the metallic phase has been revealed in thin V_2O_3 films. The insulator–metal phase transition in V_2O_3 is shown to consist of two stages: the hysteresis-less temperature-extended electron Mott transition extended in temperature and the stepwise structural Peierls transition with temperature hysteresis. The features of the insulator–metal phase transition revealed for V_2O_3 are discussed. These features are analyzed on the base of their comparison with characteristic features of analogous phase transition in VO_2 films.
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