A STUDY ON SYNTHESIS OF La 1-x Sr x CrO 3 BY SOL-GEL AND THEIR ELECTRICAL PROPERTIES

Abstract

La1-xSrxCrO3 nanoparticles were prepared by the sol-gel method. The sintering temperature of the samples could be decreased to about 400 K. The crystal structures of La1-xSrxCrO3 at room temperature are all of the othorhombic perovskite GdFeO3-type (x ≤ 0.4). And the electrical conductivity increases with x, but when x > 0.3 it decreases. The higher the sintering temperature, the better the electrical conductivity, because the grain size of the examples increases with increasing sintering temperature.