The Mössbauer Effect of Sn¹¹⁹ in Palladium-Rich Palladium—Tin Solid Solutions

Abstract

Until quite recently the Mössbauer spectroscopy of tin has been hindered by the lack of a high-effect, narrow Sn^119m source. The first tin Mössbauer source to be used widely was stannic oxide, Sn^119mO₂. Although the Mössbauer absorption spectrum of SnO₂ shows a satisfactory effect at room temperature, its width is excessively large because the peak is a doublet [1]. In terms of line width the Mg₂Sn^119m source reported by Ruby and Flinn [2] is far superior to stannic oxide. This source, however, has a negligible effect at room temperature and therefore must be used at temperatures below 77°K.