Resonant electron-phonon coupling in CeA1(2).
01 January 1985
The resonant coupling of the gamma(5)+ phonon to the gamma (7)-gamma(8) CEF excitations in CeA1(2) is probed by Raman scattering via the simultaneous observation of the renormalized (gamma(6)+) phonon and the phonon bound state. This represents the "phononic analogue" to the instantaneous observation of electronic charge fluctuations by XPS in intermediate valence compounds.