Jpr. Wells et al., Infrared absorption, laser excitation and crystal-field analyses of the C-4v symmetry centre in KY3F10 doped with Pr3+, J PHYS-COND, 12(24), 2000, pp. 5297-5306
We report a comprehensive spectroscopic study of KY3F10 doped with trivalen
t praseodymium. Employing both infrared absorption and laser excited fluore
scence spectroscopy, we have constructed an energy level scheme of 39 cryst
al-field states. A C-4v symmetry, conventional crystal-field analysis can w
ell account for the measured crystal-field splittings with the exception of
the D-1(2) levels. The inclusion of spin correlation effects improves the
fit significantly; however the magnitudes of the optimized parameters are n
ot well determined.