ON THE EXISTENCE OF EUROPIUM ALUMINUM OXYNITRIDES WITH A MAGNETOPLUMBITE OR -ALUMINA TYPE STRUCTURE

摘要

In the literature confusion exists concerning the structure type, the valence of Eu, and the amount of N incorporation of the compound europium aluminum oxynitride. By using XRD and luminescence measurements, we show that europium aluminum oxynitride has the magnetoplumbite structure. Eu is present in its divalent state, and a negligible amount of N is present. 14 refs.