Mixed-valence manganites exhibit a rich phase diagrams as function of doping level and interesting features: MR, charge, orbital and magnetic orderings. The understanding of the ordering phenomena in the mixed-valence Mn compounds, is hindered by chemical disorder. Contrary to the "classical" perovskite mixed-valent manganites (AMnO3), the "double" perovskite m.-v. manganites (AA'Mn4O12) are chemically "clean" materials, therefore model systems for the comprehension of the ordering mechanisms.
High-pressure synthesis and properties of a new family of manganites with formula: XMn7O12
Edmondo Gilioli
2007
Abstract
Mixed-valence manganites exhibit a rich phase diagrams as function of doping level and interesting features: MR, charge, orbital and magnetic orderings. The understanding of the ordering phenomena in the mixed-valence Mn compounds, is hindered by chemical disorder. Contrary to the "classical" perovskite mixed-valent manganites (AMnO3), the "double" perovskite m.-v. manganites (AA'Mn4O12) are chemically "clean" materials, therefore model systems for the comprehension of the ordering mechanisms.File in questo prodotto:
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