In the present work high resolution Fourier Transform spectroscopy is applied to monitor the electronphonon (e--ph) interaction in YAB single crystals doped with trivalent Er and Dy ions. The electronphonon coupling is analysed by monitoring the shape, width, and position of the zero-phonon lines induced by Er3+. The shift and broadening with temperature increasing are discussed in the framework of the two-phonon Raman scattering. The e--ph interaction is revealed even by the presence, in the absorption spectra of Er and Dy doped YAB crystals, of new weak lines attributed to vibronic transitions. The energy separations between the vibronic and the ZP lines are compared with IR-active modes measured on YAB crystals. Boron isotopic effects are also put in evidence.
|Number of pages||4|
|Journal||Physica Status Solidi (C) Current Topics in Solid State Physics|
|Publication status||Published - Dec 1 2007|
|Event||10th Europhysical Conference on Defects in Insulating Materials, EURODIM 2006 - Milano, Italy|
Duration: Jul 10 2006 → Jul 14 2006
ASJC Scopus subject areas
- Condensed Matter Physics