Perovskite-like Mn2O3: A Path to New Manganites.

Authors :: Ovsyannikov, Sergey V.
Abakumov, Artem M.
Tsirlin, Alexander A.
Schnelle, Walter
Egoavil, Ricardo
Verbeeck, Jo
Van Tendeloo, Gustaaf
Glazyrin, Konstantin V.
Hanfland, Michael
Dubrovinsky, Leonid
Source :: Angewandte Chemie International Edition. Jan2013, Vol. 52 Issue 5, p1494-1498. 5p.
Publication Year :: 2013
Abstract: 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). [ABSTRACT FROM AUTHOR]