Prodotti della ricerca

 
Titolo: Effect of the electron-phonon interaction on the luminescence properties of Iron ions in YAG crystal
Autori: 
Data di pubblicazione: 2009
Rivista: 
JOURNAL OF PHYSICAL CHEMISTRY. A, MOLECULES, SPECTROSCOPY, KINETICS, ENVIRONMENT, & GENERAL THEORY  
Citazione: Effect of the electron-phonon interaction on the luminescence properties of Iron ions in YAG crystal / Ricci PC; Casu A; Anedda A. - 113:50(2009), pp. 13901-13906.
Abstract: High-resolution photoluminescence spectra of Fe center dot YAG crystals were recorded in the temperature range 10-150 K with different excitation energies, ranging from the band gap energy (6.88 eV) down to selective excitation of Fe(3+) ions (2.40 eV). Iron levels fine Structure is found in the zero phonon lines, whose characteristics hint at the presence of the doping Fe(3+) ion in the tetrahedral site with a dynamic Jahn-Teller effect inherent ill the (4)T(1) excited states. The analysis of the zero phonon interactions with acoustic phonons was achieved through linear and quadratic electron-phonon Coupling models, and the Huang-Rhys factor, the Debye temperature, and the electron-phonon coupling were calculated in the framework of the Debye approximation by including only the Raman two-phonon process. The interactions with lattice phonons were studied, and the results were found to be correspondent to the expected results from previous vibrational data.
Handle: http://hdl.handle.net/11584/104061
Tipologia:1.1 Articolo in rivista

File in questo prodotto:
Non ci sono file associati a questo prodotto.
credits unica.it | accessibilità Università degli Studi di Cagliari
C.F.: 80019600925 - P.I.: 00443370929
note legali | privacy

Nascondi la toolbar