Electric Field Control of the Metal-Insulator Transition in Ultrathin Films [20]. (Inset): schematic of the MIT-FET or Metal-Insulator Transition Field Effect Transistor. In this example, the gate is an ionic liquid, capable of providing more surface charge than conventional solid state dielectrics. The channel is , a perovskite with a first metal-insulator transition. (a) The electric field suppresses the metal insulator transition—notice the gradual lowering of the MI temperature as voltage is increased—causing orders of magnitude change in the conductivity: up to 100000% electroconductivity was measured (b).
