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Title: Magnetic properties of the 6H perovskite Ba3Fe2TeO9
Authors: Tang, YW
Paria Sena, R
Avdeev, M
Battle, PD
Cadogan, JM
Hadermann, J
Hunter, EC
Keywords: Antiferromagnetism
Electron microscopy
X-ray diffraction
Neutron diffraction
Issue Date: 1-Sep-2017
Publisher: Elsevier
Citation: Tang, Y., Paria Sena, R., Avdeev, M., Battle, P. D., Cadogan, J. M., Hadermann, J., & Hunter, E. C. (2017). Magnetic properties of the 6H perovskite Ba3Fe2TeO9. Journal of Solid State Chemistry, 253, 347-354, doi:10.1016/j.jssc.2017.06.019
Abstract: A polycrystalline sample of Ba3Fe2TeO9 having the 6H perovskite structure has been prepared in a solid-state reaction and studied by a combination of electron microscopy, Mössbauer spectroscopy, magnetometry, X-ray diffraction and neutron diffraction. Partial ordering of Fe3+ and Te6+ cations occurs over the six-coordinate sites; the corner-sharing octahedra are predominantly occupied by the former and the face-sharing octahedra by a 1:1 mixture of the two. On cooling through the temperature range 18 < T/K < 295 an increasing number of spins join an antiferromagnetic backbone running through the structure while the remainder show complex relaxation effects. At 3 K an antiferromagnetic phase and a spin glass coexist. © 2017 The Authors. Creative Commons license Published by Elsevier Inc.
ISSN: 0022-4596
Appears in Collections:Journal Articles

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