Two types of charge ordering in bismuth nickelate

Among the transition-metal oxides, bismuth nickelate is particular in that, under normal conditions, it crystallizes in a triclinic structure with charge ordering in the Bi sites. Upon increasing pressure, a phase transition takes the material to the GdFeO3-type orthorhombic phase commonly found in...

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Veröffentlicht in:	Physical review. B 2021-08, Vol.104 (6), Article 064111
Hauptverfasser:	Cohen, Netanela, Diéguez, Oswaldo
Format:	Artikel
Sprache:	eng
Schlagworte:	Bismuth Density functional theory Insulators Metal-insulator transition Nickel Orthorhombic phase Perovskites Phase transitions Rare earth elements Thermal expansion Transition metal oxides Valence
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