M?ssbauer Spectroscopy of ~(119)Sn Probe Cations on the Surfaces of ZnO Crystallites: Valence State, Local Environment, and Hyperfine Interactions of Tin Additives

摘要

A synthesis procedure that allows us to obtain ZnO:0.3 at % ~(119)Sn samples with Sn~(2+) ions on the surfaces of oxide particles containing structure-forming cations on tetrahedral sites is developed for the first time. Analysis of the ~(119)Sn M?ssbauer spectra of obtained samples does not confirm the existence of the localized magnetic moments at ZnO grain boundaries recently suggested in the literature.