EPJ Web of Conferences
Volume 29, 2012EMM-FM2011 – First Euro Mediterranean Meeting on Functionalized Materials
|Number of page(s)||7|
|Published online||18 June 2012|
Effect of Fe doping on properties of Pr0.67Ba0.33Mn1-xFexO3 perovskites
1 Laboratoire de Physico–Chimie des Matériaux, Faculté des Sciences de Monastir, Département de Physique, 5019, Université de Monastir, Monastir, Tunisie
2 Laboratoire des Matériaux et du Génie Physique (CNRS UMR 5628), Minatec Bâtiment INPG, parvis Louis Néel, BP 257, 38016 Grenoble Cedex 1, France
3 Institut Néel (CNRS and UJF), BP 166, 38042 Grenoble Cedex 9, France
4 Institut Laue Langevin, BP 156, 38042 Grenoble Cedex 9, France
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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. At high temperature semiconductor and paramagnetic behavior are observed for all the samples.
PACS: 61 – / 75 –
Key words: Magnetic materials / X-ray diffraction / Physical properties
© Owned by the authors, published by EDP Sciences, 2012
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