Observation of an Insulator-Metal Transition with Na+-Irradiated Amorphous MoO3 Films

Abstract
It is shown that the electrical and optical properties of thin amorphous MoO3 films significantly change upon sodium ion irradiation at about 10 kV and that an insulator-metal transition occurs at fluences near 1016 cm-2. These results may be caused either by an electrical activation of the implants or by some compositional change as a result of a sputtering effect.