Conduction Mechanism and Dielectric Properties of Polycrystalline La0.53Ca0.47Mn0.5Cr0.5O3

Microstructural properties, dielectric behaviour, conduction mechanism, impedance, and electrical modulus of La0.65Ca0.25Sr0.1MnO3 manganite

“…Indeed, the activation energy Ea value obtained from the slope of Ln ( dc •T) versus 1000/T plot is found to be 0.14 eV. The values of activation energy obtained from other perovskite were close to those values found by the present work [22,30]. At low and high temperatures, the obtained values of Ea are around 0.13 and 0.14 eV and these values are linked to the oxygen vacancies: At low temperatures, the values of the activation energy of the electrical conduction indicate that the electron hopping and V * O are responsible for electrical conduction as these values are much less than that V * * O .…”

Investigation of the structural, electrical, and dielectric properties of La0.5Sm0.2Sr0.3Mn1−xCrxO3 for electrical application

“…These systems are known to exhibit interesting electronic properties which are explained by many mechanisms. [9][10][11][12] The manganite oxides described by the general formula Ln 1Àx A x MnO 3 , where Ln is a rare earth and A is an alkaline earth, have become every exciting materials for researchers not only for their interesting physical properties but also for their inherent ability to accommodate a wide range of elemental compositions and to display a wealth of structure variants. Lanthanum manganite (LaMnO 3 ) is one of the most broadly studied systems.…”