Orthorhombic superstructures within the rare earth strontium-doped cobaltate perovskites: Ln 1- x Sr x CoO 3-δ ( Ln = Y 3+ , Dy 3+ -Yb 3+ ; 0.750≤ x ≤0.875)

James, MichaelAvdeev, MaximBarnes, ParisMorales, LilianaWallwork, KiaWithers, Raymond2015-12-080022-4596http://hdl.handle.net/1885/38135A combination of electron, synchrotron X-ray and neutron powder diffraction reveals a new orthorhombic structure type within the Sr-doped rare earth perovskite cobaltates Ln1-xSrxCoO3-δ (Ln=Y3+, Dy3+, Ho3+, Er3+, Tm3+and Yb3+). Electron diffraction showsKeywords: Neutron diffraction; Oxygen vacancies; Perovskite; Phase diagrams; Rare earth compounds; Oxygen vacancy ordering; Perovskite superstructure; Strontium-doped cobaltate; Molecular structure Neutron diffraction; Oxygen vacancy ordering; Perovskite superstructure; Phase diagram; Strontium-doped cobaltateOrthorhombic superstructures within the rare earth strontium-doped cobaltate perovskites: Ln 1- x Sr x CoO 3-δ ( Ln = Y 3+ , Dy 3+ -Yb 3+ ; 0.750≤ x ≤0.875)200710.1016/j.jssc.2007.04.0292015-12-08