Metal-Insulator Transition in CaV1-xWxO3 (x=0.1-0.33) Perovskites

The CaV1-xWxO3 (x=0.1-0.33) perovskite system exhibits a metal-insulator transition as the tungsten content is increased, with the end composition CaV0.67W0.33O3 being a Mott insulator with localized V3+ moments.