Raman active phonons of Yb doped LuVO(4) ranging from 0.25% to 30% are detected and analyzed at low temperature in order to determine the doping effects on the crystalline quality and the phonon contribution to the crystal-field vibronics. Also, Yb(3+) ion (2)F(7/2) and (2)F(5/2) crystal-field energy levels are measured as a function of doping by infrared absorption and luminescence. The appropriate crystal-field Hamiltonian parameters are determined and the presence of Yb(3+)-Yb(3+) magnetically interacting pairs, which play an important role in cooperative emission, is confirmed
Crystal-field study of Yb3+ doped LuVO4
BETTINELLI, Marco Giovanni
2008-01-01
Abstract
Raman active phonons of Yb doped LuVO(4) ranging from 0.25% to 30% are detected and analyzed at low temperature in order to determine the doping effects on the crystalline quality and the phonon contribution to the crystal-field vibronics. Also, Yb(3+) ion (2)F(7/2) and (2)F(5/2) crystal-field energy levels are measured as a function of doping by infrared absorption and luminescence. The appropriate crystal-field Hamiltonian parameters are determined and the presence of Yb(3+)-Yb(3+) magnetically interacting pairs, which play an important role in cooperative emission, is confirmed
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