Abstract
The optical absorption spectrum of Ni2+ ion doped in lecontite (sodium ammonium sulphate dihydrate) single crystal has been studied at room and liquid air temperatures. All the bands could be assigned assumingO h symmetry for the Ni2+ ion in the crystal. The splitting of3 T 1g (F) band at liquid air temperature has been attributed to spin-orbit interaction. The crystal field and spin-orbit parameters derived areD q=1000 cm−1;B=740 cm−1;C/B=4.27 and ζ=600 cm−1. All the bands observed show a blue shift when the crystal was cooled to liquid air temperature.
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Lakshman, S.V.J., Rao, T.V.K. Optical absorption spectrum of Ni2+ ion doped in synthetic lecontite. Pramana - J Phys 20, 137–142 (1983). https://doi.org/10.1007/BF02846601
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DOI: https://doi.org/10.1007/BF02846601