A set of nanoparticles NdSrMnO3 has been prepared base on sol-gel method. On A site, the nanoparticles were modified by substitution among Nd and Sr. The effect of substitution on A site of sample to the structural and morphological were entirely examined by mean of X-Ray Diffractometer (XRD) and Scanning Electron Microscopy (SEM). From XRD result, it is found that all the sample under investigated show orthorhombic structure indicating that A site substitution does not modify structure. On the other hand, some morphological behavior has been proposed as A site is substituted. The shape and size of sample are significantly different, resulting A site substitution succeed to influenced morphology of nanosized particles.

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.

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The series sample of Nd(1-x)Sr(x)MnO3 (x = 0; 0.5 and 0.1) has been prepared with sol-gel method. The elemental compound or chemical characterization of Nd(1-x)Sr(x)MnO3 (x = 0; 0.5 and 0.1) were obtain using Energy Dispersive X-Ray Spectroscopy (EDS). The EDS results show that the elements were all presents in the sample, which also verified that the sample has successfully synthesized. The Vibrating Sample Magnetometer (VSM) was used to measure the magnetic properties of the sample under room temperature. The results show that the material is all soft magnetic with the magnetization decrease as the temperature decrease.