Etude Mössbauer des formes α et β de In 16Sn 4S 32

Abstract

119Sn Mössbauer effect measurements have been performed on the two forms α and β of In 16Sn 4S 32 over the temperature range 78 ≤ T ≤ 300 K. The effective vibrating mass ( M eff) calculated from the temperature dependence of the isomer shift ( M eff = 130 and 101 amu, respectively) leads to a lattice temperature of 198 and 245 K for the α and β forms. The recoilless fractions f( α, 78 K) = 0.72 and f( β, 78 K) = 0.76 are discussed and compared with those of other tin compounds.