2-PHOTON EXCITATION-SPECTRA OF DIVALENT EUROPIUM IN CUBIC PEROVSKITE KMGF3

Authors
FRANCINI R GRASSANO UM TOMINI M BOIKO S TARASOV GG SCACCO A
Citation
R. Francini et al., 2-PHOTON EXCITATION-SPECTRA OF DIVALENT EUROPIUM IN CUBIC PEROVSKITE KMGF3, Physical review. B, Condensed matter, 55(12), 1997, pp. 7579-7584
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
55
Issue
12
Year of publication
1997
Pages
7579 - 7584
Database
ISI
SICI code
0163-1829(1997)55:12<7579:2EODEI>2.0.ZU;2-#
Abstract
Intraconfigurational 4f(7) transitions of EU(2+) in KMgF3 have been in vestigated by means of two-photon excitation spectroscopy. A well-reso lved Stark structure of the S-8(7/2)-->P-6(7/2,5/2) transitions is dem onstrated and interpreted. Additional lines appearing in the excitatio n spectra are discussed in terms of noncubic perturbations at the subs titutional impurity site. 4f(7) excited states of Eu2+ belonging to th e D-6 multiplet, inaccessible to single-photon spectroscopy, have been identified in KMgF3.