Journal
PHYSICAL REVIEW B
Volume 62, Issue 23, Pages 15650-15659Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.62.15650
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Information on the energy of 5d levels of Ce3+ in chloride, bromide, and iodide compounds has been collected. From this, values for the centroid shift and the crystal field splitting of the 5d configuration are obtained. The centroid shift will be related to the polarizability of the anions and further analyzed by means of the ligand polarization model. The crystal field splitting is to a large extent determined by the shape and size of the anion polyhedron coordinating Ce3+. It will be analyzed in terms of the crystal field B-q(k) parameters. By combining centroid shift and crystal field splitting, the spectroscopic redshift of the first electric dipole-allowed Sd transition in Ce3+-doped halide compounds will be interpreted. The observed trends provide insights into the relationship between the spectroscopic properties of Ce3+ 5d levels and the crystalline environment.
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