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Optical Reflectance Spectra of Cr 3+ in MgO Solid Solutions
Author(s) -
MONTGOMERY THOMAS S.
Publication year - 1969
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1969.tb09197.x
Subject(s) - reflectivity , solid solution , spectral line , crystal (programming language) , optical spectra , analytical chemistry (journal) , lattice (music) , crystal structure , materials science , lattice constant , chemistry , crystallography , optics , physics , diffraction , metallurgy , chromatography , astronomy , computer science , acoustics , programming language
The effect of Cr 3+ concentration in an MgO crystal lattice on the crystal field splitting energy, 10 Dq , and on other electronic transitions was studied. Optical reflectance spectra showed a linear increase in 10 Dq with increasing Cr 3+ concentration up to the limit of solid solubility. The Racah parameter, B, decreased and the energy of the 4 T 1g → 4 A 2g transition increased with increasing Cr 3+ concentration. The increase in 10 Dq was related to the decrease in lattice parameter.