Abstract
LSMO nanoparticles with core-shell structure have been synthesized by the non-aqueous sol-gel method and for comparison of their structural, magnetic, transport, and electrochemical properties, the non-core-shell LSMO nanoparticles have been synthesized by citrate gel method. The structural analysis confirms the formation of LSMO core-shell nanostructure with a ~2.3 nm shell layer and non-core-shell LSMO nanoparticle. The magnetic properties of LSMO-CS are explained in terms of the exchange interaction between the core and the disordered surface layer of the nanoparticles. The transport properties are examined with the help of different conduction mechanisms involved in different temperature regions. The low field magnetoresistance (LFMR) and electrochemical properties of the LSMO-CS are improved as compared to the LSMO-NCS nanoparticles.
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