Studies on morphological and magnetic properties of La1−xSrxMnO3

A series of Sr doped lanthanum manganites were synthesized by simple solution combustion technique and annealed at temperature 600 °C. All LSMO samples were structurally and morphologically characterized by XRD and SEM, respectively. The nanocrystalline nature of LSMO was studied by TEM. The effect of Sr doping on magnetic properties was studied by vibrating sample magnetometer and SQUID magnetometer. The minor change in saturation magnetization observed but the coercivity decreases first and then increases with increase in Sr content. The Curie temperature (Tc) increases from 275 K to 285 K for LSMO samples as x varies from 0.1 to 0.3.