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Electronic Spectra of Radiation‐Induced CrO 4 3− in 3 CdSO 4 · 8 H 2 O Crystals
Author(s) -
Murthy T. S. N.,
Salagram M.
Publication year - 1987
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.2221440209
Subject(s) - impurity , ion , radiation , irradiation , lattice (music) , absorption spectroscopy , spectral line , doping , materials science , radiation damage , analytical chemistry (journal) , chemistry , atomic physics , molecular physics , crystallography , physics , optics , optoelectronics , astronomy , organic chemistry , chromatography , nuclear physics , acoustics
The optical absorption spectra of 3 CdSO 4 · 8 H 2 O crystals doped with different concentrations of CrO 4 2−impurity are analysed at different stages of X‐irradiation. The products of radiation damage are identified to be SO 3 −and a new species formed out of CrO 4 2−impurity. The ligand‐field (LF) nature and the charge transfer (CT) nature of the optical peaks suggest that the new species is a CrO 4 3−ion. The assignment of the bands indicate that the approximate site symmetry of CrO 4 3−ion in the lattice is D 2d . The radiation damage mechanism for the formation of CrO 3 3−ion in the lattice is discussed.
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