Abstract
Mössbauer spectra on vapor quenched Sn films were observed to investigate the lattice vibration and the electronic state in the disturbed lattice and to clarify their effects on the super-conducing- transition temperature, Tc, quantitatively. The average interatomic spacing in quenched Sn is expanded compared with β Sn, and this causes the lowering of Debye parameter and the increase in the number of free electrons. Tc estimated from these changes is 5.82 K which is in good accord with measured Tc.