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Crucial role of sol-gel synthesis in the structural and magnetic properties of LaFe0.5(Co/Ni)(0.5)O-3 perovskites

Abstract : Iron-based perovskites LaFe0.5M0.5O3, with the orthorhombic (S.G. Pbnm) and rhombohedral (S.G. R-3c) structure for M=Co and Ni, respectively were synthesized using the sol-gel method, in contrast to the literature results. Magnetic investigations reveal that LaFe0.5Co0.5O3 is a canted antiferromagnet and reaches a magnetic transition of 370 K, i.e., much above the 300 K value observed by previous authors, whereas LaFe0.5Ni0.5O3 is antiferromagnetic at low temperature. [GRAPHICS] . The sol-gel synthesized LaFe0.5Co0.5O3 perovskite to be stabilized at room temperature with a pure orthorhombic phase. The magnetization behavior reveals the perovskite is canted antiferromagnet at low temperature.
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https://hal-normandie-univ.archives-ouvertes.fr/hal-02175455
Contributor : Elisabeth van T Hof <>
Submitted on : Friday, July 5, 2019 - 5:03:06 PM
Last modification on : Tuesday, August 27, 2019 - 1:12:10 AM

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Vandana Solanki, Saptarshi Das, Satendra Kumar, Md Motin Seikh, Bernard Raveau, et al.. Crucial role of sol-gel synthesis in the structural and magnetic properties of LaFe0.5(Co/Ni)(0.5)O-3 perovskites. Journal of Sol-Gel Science and Technology, Springer Verlag, 2017, 82 (2), pp.536-540. ⟨10.1007/s10971-017-4319-x⟩. ⟨hal-02175455⟩

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