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Infrared absorption, laser excitation and crystal-field analyses of the C4v symmetry centre in KY3F10 doped with Pr3+

Wells, Jon-Paul R and Yamaga, Mitsuo and Han, Thomas P J and Gallagher, Hugh G (2000) Infrared absorption, laser excitation and crystal-field analyses of the C4v symmetry centre in KY3F10 doped with Pr3+. Journal of Physics: Condensed Matter, 12 (24). pp. 5297-5306. ISSN 0953-8984

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Abstract

We report a comprehensive spectroscopic study of KY3F10 doped with trivalent praseodymium. Employing both infrared absorption and laser excited fluorescence spectroscopy, we have constructed an energy level scheme of 39 crystal-field states. A C4v symmetry, conventional crystal-field analysis can well account for the measured crystal-field splittings with the exception of the 1D2 levels. The inclusion of spin correlation effects improves the fit significantly; however the magnitudes of the optimized parameters are not well determined.