Abstract

In this paper, we report the conduction mechanism in Pr0.67Sr0.03Ag0.30MnO3 system synthesized via conventional solid state reaction route. The structural information was carried by X – Ray diffraction using Rietveld refinement which confirms the secondary phase of the sample. The SEM image shows the formation of double phase composite because of limited reaction of silver with parent compound. The resistivity behavior indicates the semiconducting behavior. The electronic nature can be estimated by means of variable range hopping (VRH) and small polaron hopping (SPH) model showing that the enhancement of double exchange interaction suppress the band gap and boost the carrier delocalization of charge carriers.

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