Energy levels of Tm3+ in yttrium aluminium garnet
Identifieur interne : 003054 ( Main/Exploration ); précédent : 003053; suivant : 003055Energy levels of Tm3+ in yttrium aluminium garnet
Auteurs : C. Tiseanu [Roumanie] ; A. Lupei ; V. LupeiSource :
- Journal of physics. Condensed matter [ 0953-8984 ] ; 1995.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
An improved energy level diagram for Tm3+(4f12) ions in dodecahedral (D2 symmetry) sites in Y3Al5O12 (YAG) has been obtained from experimental absorption and emission spectra. Interferences in line assignment from the spectra of minority perturbed Tm3+ centres or due to electron-phonon interaction are discussed. A parametrized Hamiltonian that includes one-electron crystal-field interactions for D2 symmetry has been used to fit the experimental data. The RMS deviation between 70 experimentally determined levels (from the total of 90) and calculated levels is 9 cm-1 and the individual misfit is no larger than 20 cm-1. The analysis is based not only on the experimentally located energy levels, but also on the information concerning the symmetry labels for Stark levels. The obtained set of crystal-field parameters seems more suitable than the previously reported description of Tm3+ crystal-field energy levels in YAG.
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Lupei</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">95-0592170</idno><date when="1995">1995</date><idno type="stanalyst">PASCAL 95-0592170 INIST</idno><idno type="RBID">Pascal:95-0592170</idno><idno type="wicri:Area/Pascal/Corpus">001525</idno><idno type="wicri:Area/Pascal/Curation">001525</idno><idno type="wicri:Area/Pascal/Checkpoint">001620</idno><idno type="wicri:explorRef" wicri:stream="Pascal" wicri:step="Checkpoint">001620</idno><idno type="wicri:doubleKey">0953-8984:1995:Tiseanu C:energy:levels:of</idno><idno type="wicri:Area/Main/Merge">003301</idno><idno type="wicri:Area/Main/Curation">003054</idno><idno type="wicri:Area/Main/Exploration">003054</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Energy levels of Tm<sup>3+</sup> in yttrium aluminium garnet</title><author><name sortKey="Tiseanu, C" sort="Tiseanu, C" uniqKey="Tiseanu C" first="C." last="Tiseanu">C. Tiseanu</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Inst. atomic physics</s1><s2>Bucharest 76900</s2><s3>ROM</s3></inist:fA14><country wicri:auto="ROM">Roumanie</country><wicri:noRegion>Inst. atomic physics</wicri:noRegion></affiliation></author><author><name sortKey="Lupei, A" sort="Lupei, A" uniqKey="Lupei A" first="A." last="Lupei">A. Lupei</name></author><author><name sortKey="Lupei, V" sort="Lupei, V" uniqKey="Lupei V" first="V." last="Lupei">V. Lupei</name></author></analytic><series><title level="j" type="main">Journal of physics. Condensed matter</title><title level="j" type="abbreviated">J. phys., Condens. matter</title><idno type="ISSN">0953-8984</idno><imprint><date when="1995">1995</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of physics. Condensed matter</title><title level="j" type="abbreviated">J. phys., Condens. matter</title><idno type="ISSN">0953-8984</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term><term>Aluminium oxides</term><term>Crystal field</term><term>Energy-level transitions</term><term>Experimental study</term><term>Garnets</term><term>Impurity states</term><term>Luminescence</term><term>Ternary compounds</term><term>Thulium additions</term><term>YAG</term><term>Yttrium oxides</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Etude expérimentale</term><term>Etat impureté</term><term>Grenats</term><term>Luminescence</term><term>Spectre absorption</term><term>Transition niveau énergie</term><term>Champ cristallin</term><term>Yttrium oxyde</term><term>Aluminium oxyde</term><term>Composé ternaire</term><term>Addition thulium</term><term>Grenat aluminium yttrium</term><term>7155H</term><term>7170C</term><term>7850</term><term>Y3Al5O12:Tm</term><term>Al O Y</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">An improved energy level diagram for Tm<sup>3+</sup>(4f<sup>12</sup>) ions in dodecahedral (D<sub>2</sub> symmetry) sites in Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub> (YAG) has been obtained from experimental absorption and emission spectra. Interferences in line assignment from the spectra of minority perturbed Tm<sup>3+</sup> centres or due to electron-phonon interaction are discussed. A parametrized Hamiltonian that includes one-electron crystal-field interactions for D<sub>2</sub> symmetry has been used to fit the experimental data. The RMS deviation between 70 experimentally determined levels (from the total of 90) and calculated levels is 9 cm<sup>-1</sup> and the individual misfit is no larger than 20 cm<sup>-1</sup>. The analysis is based not only on the experimentally located energy levels, but also on the information concerning the symmetry labels for Stark levels. The obtained set of crystal-field parameters seems more suitable than the previously reported description of Tm<sup>3+</sup> crystal-field energy levels in YAG.</div></front></TEI><affiliations><list><country><li>Roumanie</li></country></list><tree><noCountry><name sortKey="Lupei, A" sort="Lupei, A" uniqKey="Lupei A" first="A." last="Lupei">A. Lupei</name><name sortKey="Lupei, V" sort="Lupei, V" uniqKey="Lupei V" first="V." last="Lupei">V. Lupei</name></noCountry><country name="Roumanie"><noRegion><name sortKey="Tiseanu, C" sort="Tiseanu, C" uniqKey="Tiseanu C" first="C." last="Tiseanu">C. Tiseanu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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