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Structural and Magnetic Investigation of the Double-Perovskite Ba2Co1−x Fe x ReO6 (0 ≤ x ≤ 0.5)

Rammeh, N. and Fuess, H. (2015):
Structural and Magnetic Investigation of the Double-Perovskite Ba2Co1−x Fe x ReO6 (0 ≤ x ≤ 0.5).
28, In: Journal of Superconductivity and Novel Magnetism, (7), pp. 2209-2213. Springer New York, ISSN 1557-1939,
[Article]

Abstract

Double-perovskite series of Ba2Co1-x Fe (x) ReO6 (x = 0, 0.2, 0.4, and 0.5) were prepared as single-phase materials using the conventional solid-state reaction method and studied by X-ray powder diffraction and magnetization techniques. The Rietveld analysis of the X-ray diffraction patterns showed a partial disordering in the Re and Fe/Co layers on the B sites of the double perovskites, which played a central role in the structural and magnetic properties of the compounds. The findings showed that symmetry was cubic (Fm3m) for all of the samples. The magnetization versus temperature measurements at H = 500 Oe revealed that the Ba2CoReO6 and Ba2Co0.8Fe0.2ReO6 samples showed antiferromagnetic state and exhibited a paramagnetic-ferromagnetic transition for x = 0.4 and 0.5. The Curie temperature was also noted to increase with the increase in the Fe content.

Item Type: Article
Erschienen: 2015
Creators: Rammeh, N. and Fuess, H.
Title: Structural and Magnetic Investigation of the Double-Perovskite Ba2Co1−x Fe x ReO6 (0 ≤ x ≤ 0.5)
Language: English
Abstract:

Double-perovskite series of Ba2Co1-x Fe (x) ReO6 (x = 0, 0.2, 0.4, and 0.5) were prepared as single-phase materials using the conventional solid-state reaction method and studied by X-ray powder diffraction and magnetization techniques. The Rietveld analysis of the X-ray diffraction patterns showed a partial disordering in the Re and Fe/Co layers on the B sites of the double perovskites, which played a central role in the structural and magnetic properties of the compounds. The findings showed that symmetry was cubic (Fm3m) for all of the samples. The magnetization versus temperature measurements at H = 500 Oe revealed that the Ba2CoReO6 and Ba2Co0.8Fe0.2ReO6 samples showed antiferromagnetic state and exhibited a paramagnetic-ferromagnetic transition for x = 0.4 and 0.5. The Curie temperature was also noted to increase with the increase in the Fe content.

Journal or Publication Title: Journal of Superconductivity and Novel Magnetism
Volume: 28
Number: 7
Publisher: Springer New York
Uncontrolled Keywords: Double-perovskite, Disordered compounds, Rietveld analysis, Magnetization, Ferromagnetic, Antiferromagnetic
Divisions: 11 Department of Materials and Earth Sciences > Material Science > Structure Research
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences
Date Deposited: 19 Jan 2016 12:21
Official URL: http://dx.doi.org/10.1007/s10948-015-3020-y
Identification Number: doi:10.1007/s10948-015-3020-y
Funders: One of the authors (N. Rammeh) would like to thank the Deutscher Akademischer Austausch-Dienst (DAAD) agency for their support., This study was supported by the Tunisian Ministry of Scientific Research and Technology.
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