Multiphonon relaxation rates measurements and theoretical calculations in the frame of non-linear and non-Coulomb model of a rare-earth ion-ligand interaction

Autor:	V.B. Sigachev, Yu.V. Orlovskii, Maxim E. Doroshenko, Tasoltan T. Basiev, K. K. Pukhov, I.N. Vorob'ev
Rok vydání:	1996
Předmět:	Ionic radius Chemistry Nuclear Theory Biophysics General Chemistry Condensed Matter Physics Biochemistry Fluorescence Atomic and Molecular Physics and Optics Ion Crystal symbols.namesake Stark effect Excited state Coulomb symbols Relaxation (physics) Atomic physics Nuclear chemistry
Zdroj:	Journal of Luminescence. 68:241-253
ISSN:	0022-2313
DOI:	10.1016/0022-2313(96)00013-0
Popis:	The fluorescence kinetics decay from 3F3, 3H5, 3H4, 3F4 multiplets of Tm3+ and 5F5, 5I5, 5S2 + 5F4, 5I6, 5I7 multiplets of Ho3+ ions in Y3Al5O12, Lu3Al5O12 and LiYF4 crystals was directly measured. On the basis of these measurements the multiphonon relaxation (MPR) rates of the transitions were determined. The theoretical dependence of multiphonon relaxation rates on the rare-earth ionic radii was derived using the non-linear (NL) theory of multiphonon relaxation. A good qualitative agreement of this dependence with new and earlier measured MPR rates in rare-earth ions in the row from Tm3+ to Pr3+ in YAG, YLF, and LaF3 crystals was obtained. The dependence of multiphonon relaxation rates on the crystal type is also considered.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ba48d1f5b66e99a4c4f5ac3c116ea37c https://doi.org/10.1016/0022-2313(96)00013-0 Zobrazit plný text záznamu Full Text from ScienceDirect