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

  • N. Rammeh
  • H. Fuess
Original Paper
  • 134 Downloads

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.

Keywords

Double-perovskite Disordered compounds Rietveld analysis Magnetization Ferromagnetic Antiferromagnetic 

Notes

Acknowledgments

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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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  1. 1.Laboratoire de Physico-Chimie des Matériaux Minéraux et leurs ApplicationsCentre National de Recherches en Sciences des MatériauxHammam-LifTunisia
  2. 2.Institute for Materials SciencesUniversity of TechnologyDarmstadtGermany

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