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Electron-vibrational shift of f-levels in CaF2 and SrF2 crystals with Tm2+ ions

Identifieur interne : 002B11 ( Main/Curation ); précédent : 002B10; suivant : 002B12

Electron-vibrational shift of f-levels in CaF2 and SrF2 crystals with Tm2+ ions

Auteurs : I. Ignatev [Russie] ; V. Ovsyankin [Russie]

Source :

Journal of luminescence [ 0022-2313 ] ; 1997.

RBID : Pascal:97-0389788

Descripteurs français

Pascal (Inist)
- Interaction électron phonon, Niveau énergie, Etude théorique, Matériau dopé, Addition thulium, Calcium fluorure, Strontium fluorure, Composé binaire, 7138, CaF2:Tm, Ca F, SrF2:Tm, F Sr.

English descriptors

KwdEn :
- Binary compounds, Calcium fluorides, Doped materials, Electron phonon interaction, Energy levels, Strontium fluorides, Theoretical study, Thulium additions.

Abstract

Copyright (c) 1997 Elsevier Science B.V. All rights reserved.The nonparametric calculations of f-level shifts in CaF₂:Tm²⁺ and SrF₂:Tm²⁺ crystals are performed in the frame of the electron-vibrational coupling (EVC) model, thoroughly tested previously by analysis of vibronic spectra and suppression of electron transitions in these crystals. It is found that EVC is able to cause large (in few tenths of cm^-1) level shifts provided that the Stark splitting is less than phonon spectrum width. This fact should be taken into account when analysing the rare-earth ion levels Stark splitting by phenomenological crystal-field models.

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Le document en format XML

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 and SrF<sub>2</sub>
 crystals with Tm<sup>2+</sup>
 ions</title>
<author><name sortKey="Ignatev, I" sort="Ignatev, I" uniqKey="Ignatev I" first="I." last="Ignatev">I. Ignatev</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, St.Petersburg State University, Petrodvoretz, Ul'yanovskaya 1</s1>
<s2>198904 St. Petersburg</s2>
<s3>RUS</s3>
<sZ>1 aut.</sZ>
</inist:fA14>
<country>Russie</country>
<wicri:noRegion>198904 St. Petersburg</wicri:noRegion>
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</author>
<author><name sortKey="Ovsyankin, V" sort="Ovsyankin, V" uniqKey="Ovsyankin V" first="V." last="Ovsyankin">V. Ovsyankin</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Vavilov State Optical Institute, 199164</s1>
<s2>St. Petersburg</s2>
<s3>RUS</s3>
<sZ>2 aut.</sZ>
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<country>Russie</country>
<wicri:noRegion>St. Petersburg</wicri:noRegion>
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<idno type="stanalyst">PASCAL 97-0389788 Elsevier</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Electron-vibrational shift of f-levels in CaF<sub>2</sub>
 and SrF<sub>2</sub>
 crystals with Tm<sup>2+</sup>
 ions</title>
<author><name sortKey="Ignatev, I" sort="Ignatev, I" uniqKey="Ignatev I" first="I." last="Ignatev">I. Ignatev</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Institute of Physics, St.Petersburg State University, Petrodvoretz, Ul'yanovskaya 1</s1>
<s2>198904 St. Petersburg</s2>
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<country>Russie</country>
<wicri:noRegion>198904 St. Petersburg</wicri:noRegion>
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<author><name sortKey="Ovsyankin, V" sort="Ovsyankin, V" uniqKey="Ovsyankin V" first="V." last="Ovsyankin">V. Ovsyankin</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Vavilov State Optical Institute, 199164</s1>
<s2>St. Petersburg</s2>
<s3>RUS</s3>
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<series><title level="j" type="main">Journal of luminescence</title>
<title level="j" type="abbreviated">J. lumin.</title>
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<imprint><date when="1997">1997</date>
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<seriesStmt><title level="j" type="main">Journal of luminescence</title>
<title level="j" type="abbreviated">J. lumin.</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Binary compounds</term>
<term>Calcium fluorides</term>
<term>Doped materials</term>
<term>Electron phonon interaction</term>
<term>Energy levels</term>
<term>Strontium fluorides</term>
<term>Theoretical study</term>
<term>Thulium additions</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Interaction électron phonon</term>
<term>Niveau énergie</term>
<term>Etude théorique</term>
<term>Matériau dopé</term>
<term>Addition thulium</term>
<term>Calcium fluorure</term>
<term>Strontium fluorure</term>
<term>Composé binaire</term>
<term>7138</term>
<term>CaF2:Tm</term>
<term>Ca F</term>
<term>SrF2:Tm</term>
<term>F Sr</term>
</keywords>
</textClass>
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<front><div type="abstract" xml:lang="en">Copyright (c) 1997 Elsevier Science B.V. All rights reserved.The nonparametric calculations of f-level shifts in CaF<sub>2</sub>
:Tm<sup>2+</sup>
 and SrF<sub>2</sub>
:Tm<sup>2+</sup>
 crystals are performed in the frame of the electron-vibrational coupling (EVC) model, thoroughly tested previously by analysis of vibronic spectra and suppression of electron transitions in these crystals. It is found that EVC is able to cause large (in few tenths of cm<sup>-1</sup>
) level shifts provided that the Stark splitting is less than phonon spectrum width. This fact should be taken into account when analysing the rare-earth ion levels Stark splitting by phenomenological crystal-field models.</div>
</front>
</TEI>
</record>

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Electron-vibrational shift of f-levels in CaF2 and SrF2 crystals with Tm2+ ions

Electron-vibrational shift of f-levels in CaF2 and SrF2 crystals with Tm2+ ions

Source :

Descripteurs français

English descriptors

Abstract

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

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri