EFFECT OF SINTERING DURATION ON MAGNETIC PROPERTIES OF La0.67Sr0.33MnO3 PEROVSKITE

Abstract

La_0.67Sr_0.33MnO₃ (LSMO) powder has been prepared by conventional solid state method. The evolution of structure formation on magnetic properties via single-stage and multi-stage sintering process were studied. X-ray diffraction (XRD), scanning electron microscopy (SEM) and vibrating sample magnetometer (VSM) analysis showed that better crystallinity was observed in multi-stage sintered sample. The enhancement of crystallinity in multi-stage sintered sample is due to intermediate grinding process which provides more homogenous size, better diffusion and grain connection between particles. The increasing of crystallinity enhanced the magnetization for multi-stage sintered sample.