Abstract:Electric transport and magnetic studies were performed on the La1-xSrxMnO3 (x=0.45-0.55) perovskite manganites. The main focus was given to the nanogranular ceramics of average x=0.47 composition, compacted by spark plasma sintering of molten salt synthesized nanoparticles. This sample can be viewed as a two-phase composite where FM manganite granules are embedded in AFM manganite matrix. The magnetoconductance data observed on this sample reveal a coexistence of distinct low- and high-field contributions, rel… Show more
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