Influence of iron addition on the oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskites
Abstract
A series of oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskite phases were prepared using solid-state reaction. Results of neutron powder diffraction analyses show that the introduction of Fe onto the B-site severely effects the long range coherence of the oxygen vacancy ordered, I4/mmm supercell, observed for the x=0.0 sample. For x=0.1 a smaller, a=b{approx}a{sub p}, c{approx}2a{sub p}, P4/mmm supercell gives the best agreement to the diffraction data, whilst phases in the range 0.2{<=}x{<=}0.6 adopt disordered cubic perovskite structures. Pseudo-cubic, a=b{approx}a{sub p}, c{approx}a{sub p}, structures are found for x{>=}0.8. Evidence of weak superstructures, reflecting local oxygen ordering, is also obtained from electron diffraction. For all oxygen-annealed phases the average structure reverts to cubic Pm3-bar m. The as-prepared samples show G-type antiferromagnetic order at room temperature. The oxygen annealed x=0.10, 0.25 and 1.0 samples display low-temperature spin-glass transitions. - Graphical abstract: Evolving crystal structures of the as-prepared Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} perovskites as a function of iron content for the compositional range 0.1{<=}x{<=}1.0.
- Authors:
-
- Department of Environmental Inorganic Chemistry, Chalmers University of Technology, SE-412 96 Goeteborg (Sweden)
- Department of Structural Chemistry, Stockholm University, SE-106 91 Stockholm (Sweden)
- Department of Engineering sciences, Uppsala University, Box 534, SE-751 21 Uppsala (Sweden)
- Institut Laue-Langevin, BP 156, 38042 Grenoble Cedex 9 (France)
- Publication Date:
- OSTI Identifier:
- 21128407
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Solid State Chemistry
- Additional Journal Information:
- Journal Volume: 181; Journal Issue: 8; Other Information: DOI: 10.1016/j.jssc.2008.04.037; PII: S0022-4596(08)00221-1; Copyright (c) 2008 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; ANNEALING; ANTIFERROMAGNETISM; BISMUTH COMPOUNDS; COBALT COMPOUNDS; CUBIC LATTICES; ELECTRON DIFFRACTION; FERRITES; IRON ADDITIONS; NEUTRON DIFFRACTION; PEROVSKITE; SPIN GLASS STATE; STRONTIUM COMPOUNDS; TEMPERATURE RANGE 0273-0400 K; TETRAGONAL LATTICES; VACANCIES
Citation Formats
Eriksson, Annika K, Lindberg, Fredrik, Svensson, Gunnar, Svedlindh, Peter, Henry, Paul F, Eriksson, Sten-G, and Knee, Christopher S. Influence of iron addition on the oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskites. United States: N. p., 2008.
Web. doi:10.1016/j.jssc.2008.04.037.
Eriksson, Annika K, Lindberg, Fredrik, Svensson, Gunnar, Svedlindh, Peter, Henry, Paul F, Eriksson, Sten-G, & Knee, Christopher S. Influence of iron addition on the oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskites. United States. https://doi.org/10.1016/j.jssc.2008.04.037
Eriksson, Annika K, Lindberg, Fredrik, Svensson, Gunnar, Svedlindh, Peter, Henry, Paul F, Eriksson, Sten-G, and Knee, Christopher S. 2008.
"Influence of iron addition on the oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskites". United States. https://doi.org/10.1016/j.jssc.2008.04.037.
@article{osti_21128407,
title = {Influence of iron addition on the oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskites},
author = {Eriksson, Annika K and Lindberg, Fredrik and Svensson, Gunnar and Svedlindh, Peter and Henry, Paul F and Eriksson, Sten-G and Knee, Christopher S.},
abstractNote = {A series of oxygen-deficient Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} (0.0{<=}x{<=}1.0) perovskite phases were prepared using solid-state reaction. Results of neutron powder diffraction analyses show that the introduction of Fe onto the B-site severely effects the long range coherence of the oxygen vacancy ordered, I4/mmm supercell, observed for the x=0.0 sample. For x=0.1 a smaller, a=b{approx}a{sub p}, c{approx}2a{sub p}, P4/mmm supercell gives the best agreement to the diffraction data, whilst phases in the range 0.2{<=}x{<=}0.6 adopt disordered cubic perovskite structures. Pseudo-cubic, a=b{approx}a{sub p}, c{approx}a{sub p}, structures are found for x{>=}0.8. Evidence of weak superstructures, reflecting local oxygen ordering, is also obtained from electron diffraction. For all oxygen-annealed phases the average structure reverts to cubic Pm3-bar m. The as-prepared samples show G-type antiferromagnetic order at room temperature. The oxygen annealed x=0.10, 0.25 and 1.0 samples display low-temperature spin-glass transitions. - Graphical abstract: Evolving crystal structures of the as-prepared Sr{sub 0.85}Bi{sub 0.15}Co{sub 1-x}Fe{sub x}O{sub 3-{delta}} perovskites as a function of iron content for the compositional range 0.1{<=}x{<=}1.0.},
doi = {10.1016/j.jssc.2008.04.037},
url = {https://www.osti.gov/biblio/21128407},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 8,
volume = 181,
place = {United States},
year = {Fri Aug 15 00:00:00 EDT 2008},
month = {Fri Aug 15 00:00:00 EDT 2008}
}