Abstract
AbstractElectron absorption, excitation and emission spectra have been measured for Cr3+ ion‐doped NaMg3Al(MoO4)5 crystal in the temperature range from 9 to 300 K. The sharp lines of the 2E–4T2 emission and broadband 4T2–4A2 luminescence from strong and weak crystal field Cr3+ sites as well as their temperature dependencies were observed. Below 200 K, Cr3+ ion pairs are detected. The local structure of Cr3+ surroundings is discussed in terms of the spectroscopic results and the crystal field parameters Dq, B and C of the Cr3+ ion are derived. The Huang–Rhys, S, and breathing phonons, ħω, parameters are reported. The use of the studied crystal as a laser material is briefly analyzed. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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