Applied Physics Letters · 1996 · 30 citations · 0 references
Natural SciencesMaterials SciencePhysicsMagnetic MaterialsMaterials PhysicsThin FilmsElectrical ConductivityThin Film Electrical PropertiesThin Film Magnetic PropertiesThin-film MaterialsConductivity In Thin FilmsHysteresisInsulator-to-metal TransitionMagnetic PropertiesMetal-insulator TransitionPulsed Laser DepositionTemperature DependenceThin-film Conductors
We have grown Pr0.67Ca0.33MnO3 thin films on LaAlO3 using pulsed laser deposition. Below 50 K, a field induced insulator-metal transition results in changes in resistivity of at least 6 orders of magnitude. The field induced conducting state is metastable at low temperature. The temperature dependence of the resistivity exhibits considerable hysteresis in a field of 40 kOe but becomes reversible in a field of 80 kOe.