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Polarized Electronic Absorption, Emission, and Excitation Spectra of Cs 2 CdCl 4 :Ni 2+ Single Crystals
Author(s) -
Ghosh B.,
Mukherjee R. K.
Publication year - 1980
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2221020115
Subject(s) - tetragonal crystal system , spectral line , octahedron , ligand field theory , excitation , ion , absorption spectroscopy , emission spectrum , analytical chemistry (journal) , absorption (acoustics) , atomic physics , materials science , crystallography , chemistry , physics , crystal structure , optics , organic chemistry , chromatography , quantum mechanics , astronomy , composite material
The polarized absorption spectra are reported of Ni 2+ doped in Cs 2 CdCl 4 single crystals at 295 and 77 K in the range 5000 to 25000 cm −1 . Emission and excitation spectra are also reported in the range 11000 to 25000 cm −l . The Ni 2+ ions occupy the Cd 2+ sites in octahedral geometry and the spectra are satisfactorily interpreted in terms of a cubic ligand field model including spin‐orbit coupling. The ligand field parameters evaluated to best fit the observed spectra are Dq = 600 cm −1 , F 2 = 1260 cm −1 , F 4 = 87 cm −l , und λ = 290 cm −l . No strong spectral evidence for tetragonal distortion is observed.