Space group and morphology evolution of nanosized Nd(x)Sr(1-x)MnO3 manganite

Polycrystalline series sample of Nd(x)Sr(1-x)MnO3 (x = 0.3; 0.7 and 0.9) has been prepared with sol-gel method. Refinement result from X-ray diffractometer shows that the sample are crystallize in the same orthorhombic structure with different space group of Imma and Pnma. Scanning Electron Microscope result also indicated that the different amount of substitution modified the grain size and both particle and crystallite size. After all, Nd0.7Sr0.3MnO3 has the largest cell volume followed by the largest grain and crystallite size compared to other two samples. Therefore, each different amount of substitution into the sample will give different impact and further investigation were needed to explore its relation to the physical properties.