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Systematization of Aurivillius-type layered oxides

Systematization of Aurivillius-type layered oxides It is shown that the chemical formulas of A m−1Bi2BmO3m+3 Aurivillius phases containing perovskite-like slabs of different thicknesses can be expressed through the formulas of the simplest layered compounds and several perovskites, representing them in the form of infinite series. Those members of such series which may have integer m and compounds that may undergo cation ordering in the perovskite-like slabs, accompanied by a change from ferroelectric to antiferroelectric ordering, are identified. Phases in which the oxygen octahedra of the perovskite-like slabs are occupied by cations of the same type (a sharp ferroelectric transition is possible) are indicated. It is suggested that the concepts of layered compound and layered solid solution need a more accurate definition. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Inorganic Materials Springer Journals

Systematization of Aurivillius-type layered oxides

Inorganic Materials , Volume 42 (10) – Oct 18, 2006

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References (20)

Publisher
Springer Journals
Copyright
Copyright © 2006 by Pleiades Publishing, Inc.
Subject
Chemistry; Inorganic Chemistry; Industrial Chemistry/Chemical Engineering; Materials Science, general
ISSN
0020-1685
eISSN
1608-3172
DOI
10.1134/S0020168506100086
Publisher site
See Article on Publisher Site

Abstract

It is shown that the chemical formulas of A m−1Bi2BmO3m+3 Aurivillius phases containing perovskite-like slabs of different thicknesses can be expressed through the formulas of the simplest layered compounds and several perovskites, representing them in the form of infinite series. Those members of such series which may have integer m and compounds that may undergo cation ordering in the perovskite-like slabs, accompanied by a change from ferroelectric to antiferroelectric ordering, are identified. Phases in which the oxygen octahedra of the perovskite-like slabs are occupied by cations of the same type (a sharp ferroelectric transition is possible) are indicated. It is suggested that the concepts of layered compound and layered solid solution need a more accurate definition.

Journal

Inorganic MaterialsSpringer Journals

Published: Oct 18, 2006

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