A. Ellens et al., STUDY OF THE VIBRONIC TRANSITIONS OF GD3+ AND EU3+ IN CRYSTALLINE MATERIALS AND GLASSES OF THE SAME COMPOSITION, Journal of solid state chemistry, 136(2), 1998, pp. 206-209
The electron-phonon coupling strength of Gd3+ and Eu3+ ions in crystal
line and glass phases of the same chemical composition are studied by
measuring the vibronic transition probabilities of the 4f(n) transitio
ns of these ions. The experimentally derived vibronic transition proba
bilities are very small. Within the experimental error, the electron-p
honon coupling strength of the lanthanide ions in the different phases
is the same. (C) 1998 Academic Press.