Crystal fields and dopant-ligand separations in cubic centres of rare-earth ions in fluorites
Year: 1990
Type: article
Abstract: Phenomenological crystal-field parameters were calculated from spectroscopic data for Eu 3+ , Dy 3+ and Er 3+ in cubic sites in a number of fluorite-structure hosts. These values, and similar data from other calculations, were used to obtain, with the help of a semiempirical modelling procedure, the dopant-ligand distances in the corresponding centres. It is confirmed that significant local lattice collapse does take place in these centres. The final dopant-ligand distances calculated in this investigation compare favourably with relevant information collected by other methods.
Author: K Lesniak
Institutions: Institute of Physics, Polish Academy of Sciences
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2066815427