Crystal growth of a new series of layered tantalates LnKNaTaO5 (Ln = La, Pr, Nd, Sm, Gd)

We report the single crystal growth and structural characterization of a series of layered tantalates with the general formula LnKNaTaO5 (Ln = La, Pr, Nd, Sm, Gd) grown out of a molten KOH/NaOH eutectic. All these oxides crystallize in the tetragonal space group P4/nmm and form a layered structure in which tantalum is found in an uncommon square pyramidal coordination environment.

We report the single crystal growth and structural characterization of a series of layered tantalates with the general formula LnKNaTaO5 (Ln = La, Pr, Nd, Sm, Gd) grown out of a molten KOH/NaOH eutectic. All these oxides crystallize in the tetragonal space group P4/nmm and form a layered structure in which tantalum is found in an uncommon square pyramidal coordination environment.Figure optionsDownload as PowerPoint slide