Abstract
Perovskite-based on manganite La0.7(Sr1-xCax)0.3MnO3 (x = 0, 0.3, 0.5, 0.7) has been successfully synthesized using by sol-gel method. All sample was characterized by using XRD (X-Ray Diffraction) obtain a single phase without impurities peak. The transition of crystal structure transition, lattice parameters, cell unit volume, crystal size, bond length (Mn-O), and <Mn-O-Mn> bond angles caused by Ca2+ ion substitution. Dopant concentration x = 0 - 0.5 shows that the sample has a rhombohedral crystal structure with space group R-3c and orthorhombic crystal structure with space group P n m a at dopant concentration x = 0.7. The results of SEM (Scanning Electron Microscope) characterization show a difference in grain size with the addition of Ca2+ ion substitution.
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