Mössbauer spectroscopy was used to study Fe in -, -, ’- and -phase tellurides at temperatures ranging from 300 to 1000K. Diffusional line broadening was observed in all of the phases except . It was noted that the activation energies for Fe diffusional jumps in the other phases increased, in the above order, with increasing Te content. This was explained in terms of the nearest jump distance between an Fe atom and neighboring Fe sites.

T.Tsuji, M.Magara: Solid State Ionics, 1996, 86-88[2], 1391-5