Abstract
The production and characterization of lanthanum-doped tungsten oxide, LaxWO3, sintered samples are presented for 0.05⩽x⩽0.23. The x-ray diffraction results show that the cubic perovskite phase is stable for x in the range of 0.086–0.21. Outside of this range additional phases are present. Resistivity measurements made between 64 and 300K provide information on the electronic properties. Room temperature Hall effect results show that the trivalent La ions donate their valence electrons into the WO3 conduction band. The samples have been prepared for an investigation of the metal-insulator transition in this tungsten bronze system.
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