Optical properties of lanthanides in the Ln/sub 2/BaZnO/sub 5/ area of the mixed oxide system Ln-Ba-Zn-O

Journal Article · Wed Jun 01 04:00:00 EDT 1988 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(88)90362-3· OSTI ID:6725741

Taiebi, M; Aride, J; Antic-Fidancev, E; LeMaitre-Blaise, M; Porcher, P; Caro, P

The absorption spectrum of neodymium is investigated at 4.2 K in the tetragonal phase Ln/sub 4-2x/Ba/sub 2+2x/Zn/sub 2-x/O/sub 10-2x/ (Ln = La, Nd) (O less than or equal to x less than or equal to 0.25). There is evidence for a single site for which the 4f/sup 3/ energy levels are given. The fluorescence spectra of Eu/sup 3 +/ is analyzed in the orthorhombic phase Y/sub 2/BaZnO/sub 5/. There are two sites for the europium ions. The energy levels of 4f/sup 6/ are given and the crystal field parameters are determined for one of the sites. The fourth-order parameters are large. The absorption spectra of the two neodymium sites in the doped orthorhombic phases along the rare-earth series show a pronounced nephelauxetic effect (shift to the red).

• Research Organization: Ecole Normale Superieure de Takaddoum, Rabat (Morocco)
• OSTI ID: 6725741
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 74:2; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CATIONS
CHALCOGENIDES
CHARGED PARTICLES
CRYSTAL DOPING
DATA
DOPED MATERIALS
EUROPIUM COMPOUNDS
EXPERIMENTAL DATA
FLUORESCENCE
INFORMATION
IONS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
LUMINESCENCE
MATERIALS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
NUMERICAL DATA
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPECTRA
VISIBLE SPECTRA
ZINC COMPOUNDS
ZINC OXIDES