Investigation of the SrFe1-xCoxO3 (0≤x≤1) Cubic Perovskites Obtained by Electrochemical Oxidation

L. Fournès; A. Wattiaux; A. Demourgues; P. Bezdicka; J.C. Grenier; M. Pouchard; J. Etourneau

doi:doi:10.1051/jp4:19971143

Numéro		J. Phys. IV France Volume 07, Numéro C1, Mars 1997 7th INTERNATIONAL CONFERENCE ON FERRITES


Page(s)		C1-353 - C1-354
DOI		https://doi.org/10.1051/jp4:19971143

7th INTERNATIONAL CONFERENCE ON FERRITES

J. Phys. IV France 07 (1997) C1-353-C1-354
DOI: 10.1051/jp4:19971143

Investigation of the SrFe_1-xCo_xO₃ (0≤x≤1) Cubic Perovskites Obtained by Electrochemical Oxidation

L. Fournès, A. Wattiaux, A. Demourgues, P. Bezdicka, J.C. Grenier, M. Pouchard and J. Etourneau

Institut de Chimie de la Matière Condensée de Bordeaux, avenue du Dr. A. Schweitzer, 33608 Pessac cedex, France

Abstract
The transition-metal perovskites SrFe_1-xCo_xO₃ (0≤x≤1) are of a great interest because the high oxidation states of the transition-metal (Fe(IV), Co(IV)) can be stabilized. Moreover these compounds exhibit interesting magnetic properties. These oxygen stoichiometric phases have been prepared only under high oxygen pressures. A novel preparation method of these phases has been investigated using electrochemical oxidation of the SrFe_1-xCo_xO_2.5 brownmillerite-type compounds [1-3]. The starting materials and the phases obtained after electrochemical processing have been characterized by X-ray powder diffraction, chemical analysis and ⁵⁷Fe Mössbauer spectroscopy. Finally, the magnetic and transport properties have been studied.