Crystal and magnetic structures of high pressure Mn2-xCoxScSbO6 solid solutions
Transition metal oxides continue to be of great important for magnetism and other properties, and double perovskite (DPv) and double corundum cation orderings are frequently used to induce and tune physical properties. We propose Mn2-xCoxScSbO6 solid solutions x = 0.5, 1.5 where both have two polymorphs, double perovskite and double corundum. x = 0 and 2 materials are NTO-type, but Mn/Co disorder stabilizes the double perovskite (DPv) structure with x = 0.5 and 1.5. Incorporation of small Co2+ at A-sites in (double) perovskites is very unusual. Rietveld refinements shows that all these solid solutions have the P21/n DPv structure, with phase purities up to ~90%. High temperature Synchrotron X-ray data of x = 1 shows a structural phase transition from DPv to a R3 corundum type structure above 270 ° C. Magnetic measurements confirmed different magnetic properties for DPv and double corundum. D20 is needed to determine the crystal structures in high-resolution mode (wavelength = 1.54 Å), given small monoclinic distortions, as well as low temperature magnetic structures and their thermal evolution in high flux mode (wavelength = 2.41 Å).
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
JI Kunlang and RITTER Clemens. (2023). Crystal and magnetic structures of high pressure Mn2-xCoxScSbO6 solid solutions. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.EASY-1194
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.