Study of the intermediate Jahn-Teller system La2+ in CaF2 Raman and EPR spectroscopy

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, , Citation H Bill and O Pilla 1984 J. Phys. C: Solid State Phys. 17 3263 DOI 10.1088/0022-3719/17/18/018

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1 Dept. de Chimie Phys., Univ. de Geneve, Geneve, Switzerland

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0022-3719/17/18/3263

Abstract

New low-temperature vibronic Raman and EPR (under stress) spectra on CaF2:La2+ are reported. The experimental data are interpreted as indicating the presence of an intermediate E(X) epsilon type of Jahn-Teller coupling. The lowest vibronic state is approximately=15 cm-1 below the top of the angular barrier.

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