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Energy levels and crystal-field analysis of Tm3+ in YAl3(BO3)4 crystals

Identifieur interne : 000B64 ( Main/Exploration ); précédent : 000B63; suivant : 000B65

Energy levels and crystal-field analysis of Tm3+ in YAl3(BO3)4 crystals

Auteurs : I. Kebaïli [Tunisie] ; M. Dammak [Tunisie] ; E. Cavalli [Italie] ; M. Bettinelli [Italie]

Source :

Journal of luminescence [ 0022-2313 ] ; 2011.

RBID : Pascal:11-0339152

Descripteurs français

Pascal (Inist)
- Niveau énergie, Champ cristallin, Photoluminescence, Spectre absorption, Effet Stark, Dopage, Hamiltonien, Ion libre, Transfert énergie, Addition thulium, Aluminium Yttrium Borate Mixte.
Wicri :
- topic : Dopage.

English descriptors

KwdEn :
- Absorption spectra, Aluminium Yttrium Borates Mixed, Crystal field, Doping, Energy levels, Energy transfer, Free ion, Hamiltonians, Photoluminescence, Stark effect, Thulium additions.

Abstract

The electronic structure of the Tm³⁺ in YAl₃(BO₃)₄ crystals has been investigated by means of low temperature absorption and emission spectroscopy in the 5000-30,000 cm^-1 range. The assignment of the lines composing the observed manifolds to transitions between the Stark levels of Tm³⁺ is is complicated by the presence of extra features having different origins. The energy levels scheme of the doping ion has been compiled after a careful analysis of the spectra by reproducing the observed transitions by means of theoretical calculations based on a Hamiltonian, including the free ion and the crystal field (CF) terms. The agreement between experimental and calculated energy values was reasonably good, the overall r.m.s. deviation being 16 cm^-1. The resulting CF parameters have been tabulated and compared with those reported in literature for other rare earth ions doped in YAB. The analysis of trends observed along the lanthanide series evidences some inconsistencies and the necessity of a systematic investigation of these systems.

Affiliations:

Italie, Tunisie

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Le document en format XML

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 crystals</title>
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<series><title level="j" type="main">Journal of luminescence</title>
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<term>Energy levels</term>
<term>Energy transfer</term>
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<term>Hamiltonians</term>
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<term>Spectre absorption</term>
<term>Effet Stark</term>
<term>Dopage</term>
<term>Hamiltonien</term>
<term>Ion libre</term>
<term>Transfert énergie</term>
<term>Addition thulium</term>
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<front><div type="abstract" xml:lang="en">The electronic structure of the Tm<sup>3+</sup>
 in YAl<sub>3</sub>
(BO<sub>3</sub>
)<sub>4</sub>
 crystals has been investigated by means of low temperature absorption and emission spectroscopy in the 5000-30,000 cm<sup>-1</sup>
 range. The assignment of the lines composing the observed manifolds to transitions between the Stark levels of Tm<sup>3+</sup>
 is is complicated by the presence of extra features having different origins. The energy levels scheme of the doping ion has been compiled after a careful analysis of the spectra by reproducing the observed transitions by means of theoretical calculations based on a Hamiltonian, including the free ion and the crystal field (CF) terms. The agreement between experimental and calculated energy values was reasonably good, the overall r.m.s. deviation being 16 cm<sup>-1</sup>
. The resulting CF parameters have been tabulated and compared with those reported in literature for other rare earth ions doped in YAB. The analysis of trends observed along the lanthanide series evidences some inconsistencies and the necessity of a systematic investigation of these systems.</div>
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Energy levels and crystal-field analysis of Tm3+ in YAl3(BO3)4 crystals

Energy levels and crystal-field analysis of Tm3+ in YAl3(BO3)4 crystals

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri