I have prepared the nano-structural materials. The structural, magnetic and transport behavior were studied using different experimental behavior. Present work is concerned with the study of size effects on magnetic and electrical properties of Ca-based La_0.7Ca_0.3MnO₃. Size effects on magnetization and coercivity have been analyzed. A.C Susceptibility of these particles as a function of temperature has also been studied. Surface contribution was further confirmed through the measurements of Banerjee Plots and Magnetocaloric effects.

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