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Title: The magnetoelectric perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9}: An insight from magnetic measurements and neutron powder diffraction

Abstract

A study of the crystallographic and magnetic structures of the double perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9} has been carried out on a polycrystalline sample using neutron powder diffraction (NPD) data between 10 and 650 K. An analysis of the NPD patterns at room temperature has shown that this compound crystallises in the tetragonal space group I4/m with a = 5.5614(7) A and c = 7.867(1) A and has a partially ordered arrangement of Fe and Te at the B-sites. The compound undergoes an I4/m {sup {yields}} Fm-3m improper ferroelectric phase transition near 460 K. A low-temperature ferrimagnetic ordering (below T {sub N} = 260 K) has been followed from the magnetisation measurements and sequential NPD data analysis. In good agreement with magnetic measurements the ferrimagnetic structure with very weak magnetisation is defined by the propagation vector k = (0, 0, 0). In addition to the obtained experimental results on magnetic and electric properties some aspects of magnetoelectricity in this perovskite are also discussed and compared with those of another quaternary oxide Sr{sub 3}Fe{sub 2}B{sup 6+}O{sub 9}.

Authors:
 [1];  [2];  [3];  [4];  [5]
  1. Department of Inorganic Materials, Karpov' Institute of Physical Chemistry, Ul. Vorontsovo Pole, 10 105064 Moscow K-64 (Russian Federation). E-mail: ivan@cc.nifhi.ac.ru
  2. Department of Engineering Sciences, University of Uppsala, Uppsala (Sweden). E-mail: per.nordblad@angstrom.uu.se
  3. Department of Inorganic Chemistry, University of Gothenburg (Sweden). E-mail: stene@inoc.chalmers.se
  4. Department of Materials Chemistry, The Angstrom Laboratory, Uppsala University, Uppsala (Sweden). E-mail: rte@mkem.uu.se
  5. Department of Materials Chemistry, The Angstrom Laboratory, Uppsala University, Uppsala (Sweden)
Publication Date:
OSTI Identifier:
21000625
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 42; Journal Issue: 4; Other Information: DOI: 10.1016/j.materresbull.2006.07.016; PII: S0025-5408(06)00295-9; Copyright (c) 2006 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; CRYSTALLOGRAPHY; DATA ANALYSIS; ELECTRICAL PROPERTIES; FERROELECTRIC MATERIALS; MAGNETIC FIELDS; MAGNETIZATION; NEUTRON DIFFRACTION; OXIDES; PEROVSKITE; PHASE TRANSFORMATIONS; POLYCRYSTALS; SPACE GROUPS; TEMPERATURE DEPENDENCE; TETRAGONAL LATTICES

Citation Formats

Ivanov, S.A., Nordblad, P., Eriksson, S.-G., Tellgren, R., and Rundloef, H. The magnetoelectric perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9}: An insight from magnetic measurements and neutron powder diffraction. United States: N. p., 2007. Web. doi:10.1016/j.materresbull.2006.07.016.
Ivanov, S.A., Nordblad, P., Eriksson, S.-G., Tellgren, R., & Rundloef, H. The magnetoelectric perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9}: An insight from magnetic measurements and neutron powder diffraction. United States. doi:10.1016/j.materresbull.2006.07.016.
Ivanov, S.A., Nordblad, P., Eriksson, S.-G., Tellgren, R., and Rundloef, H. Thu . "The magnetoelectric perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9}: An insight from magnetic measurements and neutron powder diffraction". United States. doi:10.1016/j.materresbull.2006.07.016.
@article{osti_21000625,
title = {The magnetoelectric perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9}: An insight from magnetic measurements and neutron powder diffraction},
author = {Ivanov, S.A. and Nordblad, P. and Eriksson, S.-G. and Tellgren, R. and Rundloef, H.},
abstractNote = {A study of the crystallographic and magnetic structures of the double perovskite Sr{sub 3}Fe{sub 2}TeO{sub 9} has been carried out on a polycrystalline sample using neutron powder diffraction (NPD) data between 10 and 650 K. An analysis of the NPD patterns at room temperature has shown that this compound crystallises in the tetragonal space group I4/m with a = 5.5614(7) A and c = 7.867(1) A and has a partially ordered arrangement of Fe and Te at the B-sites. The compound undergoes an I4/m {sup {yields}} Fm-3m improper ferroelectric phase transition near 460 K. A low-temperature ferrimagnetic ordering (below T {sub N} = 260 K) has been followed from the magnetisation measurements and sequential NPD data analysis. In good agreement with magnetic measurements the ferrimagnetic structure with very weak magnetisation is defined by the propagation vector k = (0, 0, 0). In addition to the obtained experimental results on magnetic and electric properties some aspects of magnetoelectricity in this perovskite are also discussed and compared with those of another quaternary oxide Sr{sub 3}Fe{sub 2}B{sup 6+}O{sub 9}.},
doi = {10.1016/j.materresbull.2006.07.016},
journal = {Materials Research Bulletin},
number = 4,
volume = 42,
place = {United States},
year = {Thu Apr 12 00:00:00 EDT 2007},
month = {Thu Apr 12 00:00:00 EDT 2007}
}