Abstract
The absorption spectrum of antimony phosphate glass doped with Cr3+ is characterized by the presence of features on the 4T2g(4F) absorption band. These features result from the interaction of the 2Eg(2G) and 2T1g(2G) sharp levels with the vibrationally broadened 4T2g(4F) quasi-continuum via spin-orbit coupling called interference dips. We have analyzed this phenomenon through two models: Fano’s antiresonance and Neuhauser models. This analysis permits us to determine the electronic structure of the chromium ion Cr3+ based on the crystal field theory. As a result, Racah and crystal-field parameters have been reliably obtained. A good agreement between the theoretical and the experimental energy levels are obtained.
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Souissi, H., Taktak, O. & Kammoun, S. Crystal field study of Chromium(III) ions doped antimony phosphate glass: Fano’s antiresonnance and Neuhauser models. Indian J Phys 92, 1153–1160 (2018). https://doi.org/10.1007/s12648-018-1212-6
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DOI: https://doi.org/10.1007/s12648-018-1212-6
Keywords
- Crystal field
- Transition-metal
- Phosphate glass
- Interference dip
- Fano’s antiresonances and Neuhauser models