Etude de la diffusion du lithium dans le phosphure par mesure du temps de relaxation transversal RMN de 7Li

The measure of transverse relaxation time T2 of 7Li permits precise study of the diffusion of the nucleus, which has already been observed by 119Sn Mossbauer spectroscopy in three phosphides. The analysis of Hendrickson and Bray has been applied to the results obtained as a function of temperature. A discontinuity in the processes of diffusion is observed, and a possible explanation has been proposed.