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Description
Strontium-doped lanthanum manganites (LSMO) are well known in the literature for having 100% spin polarization, which can be used for spintronic applications. Several works about the synthesis and structural and morphological characterization have already been published about this material. However, these characterizations solely are not enough to determine that the synthesized material is LSMO, requiring a magnetic report. In this work, the magnetometer was used to characterize lanthanum manganite particles treated with little and over-stoichiometry oxygen and LSMO. These results were analyzed and compared with the literature in order to show that the excess of oxygen in the lanthanum manganite produces an effect similar to that of the strontium atom in the A site of the LSMO, leading to misinterpretations of the synthesized material.