ELECTRONIC ABSORPTION-SPECTROSCOPY OF NEODYMIUM ACETATE SINGLE-CRYSTALS

Citation
A. Mondry et K. Bukietynska, ELECTRONIC ABSORPTION-SPECTROSCOPY OF NEODYMIUM ACETATE SINGLE-CRYSTALS, Journal of alloys and compounds, 277, 1998, pp. 818-821
Citations number
17
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
ISSN journal
09258388
Volume
277
Year of publication
1998
Pages
818 - 821
Database
ISI
SICI code
0925-8388(1998)277:<818:EAONAS>2.0.ZU;2-M
Abstract
Electronic absorption spectra of neodymium acetate single crystals wer e measured at 293 and 4 K. The intensities of 4f-4f transitions were c alculated and the Judd-Ofelt Omega(lambda) parameters evaluated. These results differ in comparison with other lanthanide carboxylate compou nds by relatively high 'hypersensitive' transition intensity and the O mega(2) parameter value. The vibronic mechanism of the 4f-4f transitio ns is discussed and the role of low-energy phonons is shown. (C) 1998 Published by Elsevier Science S.A.