Perovskite-like Mn2O3: A Path to New Manganites

被引：90
|
作者：
Ovsyannikov, Sergey V. [1 ]
Abakumov, Artem M. [2 ]
Tsirlin, Alexander A. [3 ]
Schnelle, Walter [3 ]
Egoavil, Ricardo [2 ]
Verbeeck, Jo [2 ]
Van Tendeloo, Gustaaf [2 ]
Glazyrin, Konstantin V. [1 ]
Hanfland, Michael [4 ]
Dubrovinsky, Leonid [1 ]
机构：
[1] Univ Bayreuth, Bayer Geoinst, D-95447 Bayreuth, Germany
[2] Univ Antwerp, EMAT, B-2020 Antwerp, Belgium
[3] Max Planck Inst Chem Phys Solids, D-01187 Dresden, Germany
[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France
来源：
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 05期
基金：
欧洲研究理事会;
关键词：
high-pressure chemistry; magnetic properties; Mn2O3; perovskite phases; solid-state structures; HIGH-TEMPERATURE SYNTHESIS; HIGH-PRESSURE PHASE; GIANT MAGNETORESISTANCE; INDUCED TRANSITION; CRYSTAL-STRUCTURE; MANGANESE OXIDES; SPECTRA; CHARGE; POLYMORPH; MN3O4;
D O I：
10.1002/anie.201208553
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Phases of the Mn2O3: Two new phases of Mn 2O3 - corundum-type ε-Mn2O3 and perovskite-type ζ-Mn2O3 - were obtained by high-pressure high-temperature synthesis. Manganese atoms were found to completely occupy the A- and B-positions of perovskite simultaneously. The perovskite-type ζ-Mn2O3 has an A-site-ordered perovskite structure (see picture) containing Mn in three different oxidation states (+II, +III, and +IV). Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：1494 / 1498
页数：5
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