Portal de Periódicos da CAPES

Spectroscopic properties of SrRE 2 O 4 : Eu 3+ (RE identical to Eu, Gd, Y and In): crystal-field analysis and paramagnetic susceptibility measurements

1993; IOP Publishing; Volume: 5; Issue: 29 Linguagem: Inglês

10.1088/0953-8984/5/29/015

1361-648X

М. Тайбі, Željka Antić, J. Aride, M. Lemaı̂tre-Blaise, P. Porcher,

Lanthanide and Transition Metal Complexes

The luminescence properties of trivalent europium embedded in an isostructural SrRE2O4 (RE identical to Eu, Gd, Y, In) series have been studied. The energy level schemes as well as the crystal-field analysis of the two non-equivalent point sites present in the structure show clearly the smooth modifications of the europium local probe environment for only one point site versus the ionic radius of the cation, the environment of the other site being quite unmodified. The paramagnetic susceptibility of the europium compound is well reproduced by using the wavefunctions derived from the crystal-field calculation.