Negative ionic states of tin in the oxide superconductor Sr${}_{3-x}$SnO revealed by Mössbauer spectroscopy

Atsutoshi Ikeda, Shun Koibuchi, Shinji Kitao +4

We report the temperature variation of the ${}^{119}$Sn-Mössbauer spectra of the antiperovskite (inverse perovskite) oxide superconductor Sr${}_{3-x}$SnO. Both superconductive (Sr-defi…