Perovskite-like Mn2O3: A Path to New Manganites (pages 1494–1498)
Dr. Sergey V. Ovsyannikov, Prof. Artem M. Abakumov, Dr. Alexander A. Tsirlin, Dr. Walter Schnelle, Dr. Ricardo Egoavil, Prof. Jo Verbeeck, Prof. Gustaaf Van Tendeloo, Dr. Konstantin V. Glazyrin, Dr. Michael Hanfland and Prof. Dr. Leonid Dubrovinsky
Article first published online: 20 DEC 2012 | DOI: 10.1002/anie.201208553
Phases of the Mn2O3: Two new phases of Mn2O3—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).