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Title: Magnetic properties of the 6H perovskite Ba{sub 3}Fe{sub 2}TeO{sub 9}

Abstract

A polycrystalline sample of Ba{sub 3}Fe{sub 2}TeO{sub 9} 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 Fe{sup 3+} and Te{sup 6+} 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. - Graphical abstract: On cooling an increasing number of spins join an antiferromagnetic backbone running through the structure while the remainder show complex relaxation effects. Display Omitted - Highlights: • Rapid spin relaxation occurs over a wide temperature range below the Néel temperature. • Magnetic moments on two cation sublattices develop at significantly different rates. • Centrosymmetric structure is confirmed by electron microscopy.

Authors:
 [1];  [2];  [3];  [4];  [1];  [5];  [2];  [1]
  1. Inorganic Chemistry Laboratory, Oxford University, South Parks Road, Oxford OX1 3QR (United Kingdom)
  2. EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium)
  3. Australian Nuclear Science and Technology Organisation, Lucas Heights, NSW2234 (Australia)
  4. (Australia)
  5. School of Physical, Environmental and Mathematical Sciences, UNSW Canberra at the Australian Defence Force Academy, Canberra, BC 2610 (Australia)
Publication Date:
OSTI Identifier:
22742040
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 253; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ANTIFERROMAGNETISM; ELECTRON MICROSCOPY; IRON IONS; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; NEUTRON DIFFRACTION; PEROVSKITE; RELAXATION; SPIN GLASS STATE; TEMPERATURE RANGE; X-RAY DIFFRACTION

Citation Formats

Tang, Yawei, Paria Sena, Robert, Avdeev, Maxim, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Battle, Peter D., E-mail: peter.battle@chem.ox.ac.uk, Cadogan, J. M., Hadermann, Joke, and Hunter, Emily C. Magnetic properties of the 6H perovskite Ba{sub 3}Fe{sub 2}TeO{sub 9}. United States: N. p., 2017. Web. doi:10.1016/J.JSSC.2017.06.019.
Tang, Yawei, Paria Sena, Robert, Avdeev, Maxim, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Battle, Peter D., E-mail: peter.battle@chem.ox.ac.uk, Cadogan, J. M., Hadermann, Joke, & Hunter, Emily C. Magnetic properties of the 6H perovskite Ba{sub 3}Fe{sub 2}TeO{sub 9}. United States. doi:10.1016/J.JSSC.2017.06.019.
Tang, Yawei, Paria Sena, Robert, Avdeev, Maxim, School of Chemistry, The University of Sydney, Sydney, NSW 2006, Battle, Peter D., E-mail: peter.battle@chem.ox.ac.uk, Cadogan, J. M., Hadermann, Joke, and Hunter, Emily C. Fri . "Magnetic properties of the 6H perovskite Ba{sub 3}Fe{sub 2}TeO{sub 9}". United States. doi:10.1016/J.JSSC.2017.06.019.
@article{osti_22742040,
title = {Magnetic properties of the 6H perovskite Ba{sub 3}Fe{sub 2}TeO{sub 9}},
author = {Tang, Yawei and Paria Sena, Robert and Avdeev, Maxim and School of Chemistry, The University of Sydney, Sydney, NSW 2006 and Battle, Peter D., E-mail: peter.battle@chem.ox.ac.uk and Cadogan, J. M. and Hadermann, Joke and Hunter, Emily C.},
abstractNote = {A polycrystalline sample of Ba{sub 3}Fe{sub 2}TeO{sub 9} 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 Fe{sup 3+} and Te{sup 6+} 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. - Graphical abstract: On cooling an increasing number of spins join an antiferromagnetic backbone running through the structure while the remainder show complex relaxation effects. Display Omitted - Highlights: • Rapid spin relaxation occurs over a wide temperature range below the Néel temperature. • Magnetic moments on two cation sublattices develop at significantly different rates. • Centrosymmetric structure is confirmed by electron microscopy.},
doi = {10.1016/J.JSSC.2017.06.019},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 253,
place = {United States},
year = {2017},
month = {9}
}