35 research outputs found
Evolution of in Fe-doped manganites synthesized by the ball-milling method
Manganites-based perovskites, having the general formula LnAMnMO where Ln is a rare earth element (Ln = Pr , La ,..) and A is an alkaline earth element (A = Sr , Ba , Ca ,..), were the center of interest of many studies because of their outstanding physicochemical properties and because they can play an important role in various applications. The aim of this work is the development with mechanical alloying method and study of physicochemical properties of new manganites. This work focuses on the development and characterization of series LaCaSrMnFeO (0 ≤ x≤ 0. 3. The structural study showed that the cell parameters of the samples increase with the increase in the rate of iron and causing the expansion of the orthorhombic distortion. This result is confirmed by the tolerance factor tg (0. 75 < tg< 0. 95 : orthorhombic structure). The magnetic study showed that the substitution of Mn by Fe in these series indicates a ferromagnetic-paramagnetic transition. This transition accompanied with a decrease in the Curie temperature (T)
Critical Behavior in the La0.6Ca0.4MnO3 Perovskite Manganite
International audienc
Study of magnetic transition and magnetic entropy changes of Pr0.6Sr0.4MnO3 and Pr0.6Sr0.4Mn0.9Fe0.1O3 compounds
International audienc
Critical phenomena in La0.6Pr0.1Sr0.3MnO3 perovskite manganese oxide
International audienc
Structural, morphologic and magnetic properties of Pr0.6La0.1Ca0.3Mn1−xFexO3 (0≤x≤0.3) perovskite nanopowder
International audienc
Study of magnetic and magnetocaloric properties of La0.6Pr0.1Ba0.3MnO3 and La0.6Pr0.1Ba0.3Mn0.9Fe0.1O3 perovskite-type manganese oxides
International audienc
Effect of Fe Substitution on the Structural, Magnetic and Magnetocaloric Properties of Pr0.6La0.1Mg0.3Mn1−x Fe x O3 (0≤x≤0.3) Perovskite Manganites Prepared by Sol Gel Method
International audienc
Magnetic and magnetocaloric properties of La0.6Pr0.1Sr0.3Mn1−xFexO3 (0≤x≤0.3) manganites
International audienc