Abstract
Changes in the physical properties of ceramic Pr0.67 Ba0.33 Mn1-x Fex O3 (0 ≤ x ≤ 0.15) are interpreted as resulting from the suppression of the ferromagnetic double exchange interaction with almost no lattice effect due to similar ionic radii value of Fe3+ and Mn3+ Magnetization and transport measurements show at low temperature ferromagnetic and metallic behavior for x=0 and 0.05 samples, whereas x = 0.10 and x = 0.15 compounds show spin glass like and semiconducting behavior. At high temperature semiconductor and paramagnetic behavior are observed for all the samples.
Highlights
Manganites perovskite oxides were widely studied in the last two decades after the discovery of colossal magnetoresistance (CMR) [1]
Changes in the physical properties of ceramic Pr0.67Ba0.33Mn1-xFexO3 (0 ≤ x ≤ 0.15) are interpreted as resulting from the suppression of the ferromagnetic double exchange interaction with almost no lattice effect due to similar ionic radii value of Fe3+ and Mn3+ Magnetization and transport measurements show at low temperature ferromagnetic and metallic behavior for x=0 and 0.05 samples, whereas x = 0.10 and x = 0.15 compounds show spin glass like and semiconducting behavior
We have studied the effect of Fe doping at Mn- site on electrical and magnetic properties of Pr0.67Ba0.33Mn1-xFexO3 (0 ≤ x ≤ 0.15) manganese oxide
Summary
Manganites perovskite oxides were widely studied in the last two decades after the discovery of colossal magnetoresistance (CMR) [1]. Those with Ba content remains less investigated despite the initial discovery of the CMR effect in La0.67Ba0.33MnO3 thin films [6] (see [4] and [7] and references therein). In this paper we report in more details its structural, magnetic and electrical properties that appear quite similar to previous Ba-doped studied system.
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