Comparative Study between Energy Levels of Cr3+ and Co2+ Ions Doped in MgF2 Crystal
R. Nistoraa, L. Andreicia and N.M. Avrama,b
a Departament of Physics, West University of Timisoara, 300223 Timisoara, Romania
b Academy of Romanian Scientists, Independentei 54, 050094 Bucharest, Romania
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The aim of this paper is to present a comparison of the energy level schemes of Cr3+ (3d3 electrons) and Co2+ (3d7 electrons), each of ions doped, separately, in MgF2 crystal. We report on the detailed and consistent crystal field analysis of Cr3+ spectra in MgF2 crystal and compare with results, previously obtained, for Co2+, doped in same host matrix. The results are based on application of the exchange charge model of crystal field to the calculation of crystal field parameters and energy levels of both ions doped in MgF2.The calculations have been performed on previously optimized geometry of MgF2 crystal. The obtained results are compared with experimental data and discussed.
DOI: 10.12693/APhysPolA.116.538
PACS numbers: 71.70Ch, 42.70Hj, 61.72.S-