Microstructural and magnetotransport properties of La1−xCaxMnO3 (0.45≤x≤0.60) thin films

Nature of temperature‐ and magnetic‐field‐dependent conduction mechanism in electron‐doped Ca0.85R0.15MnO3 (R = Pr, La) manganites

“…It has been observed that the conduction mechanism of the electron‐doped charge‐ordered Ca 0.85 La 0.15 MnO 3 system obeys the small‐polaron hopping model throughout the paramagnetic high‐temperature (160–300 K) and antiferromagnetic low‐temperature (90–150 K) phases . Many authors have also reported the structural properties and transport mechanism in this polycrystalline sample . However, much less is known about the conduction mechanism of such electron‐doped manganites (i.e., x < 0.2) up to 5 K and also with the application of high magnetic fields up to 15 T. Our plan in the present study is to concentrate on the conduction properties of electron‐doped CO‐antiferromagnetic insulating system Ca 0.85 R 0.15 MnO 3 (R = Pr, La) with and without an applied magnetic field.…”