Theoretica chimica acta

, Volume 5, Issue 4, pp 327–335 | Cite as

Crystal-field studies of trivalent Thulium in Yttrium Aluminum Garnet

  • J. A. Koningstein
Commentationes

Abstract

CF parameters have been calculated from the splitting of some of the manifolds of Tm3+ in Yttrium Aluminum Garnet (YAlG). Values of these parameters are: A 2 0 =270 cm−1, A 2 2 =± 95 cm−1, A 4 0 =−170 cm−1, A 4 2 =± 410 cm−1, A 4 4 =−1020 cm−1, A 6 0 =30 cm−1, A 6 2 =± 115 cm−1, and A 6 4 =−475 cm−1. There are indications that these parameters do not describe the splitting patterns of excited states with higher energy.

Keywords

Aluminum Physical Chemistry Manifold Inorganic Chemistry Organic Chemistry 

Zusammenfassung

Aus der Aufspaltung entarteter Zustände von Tm3+ in YAlG sind Kristallfeldparameter berechnet worden. Die Werte dieser Parameter sind: A 2 0 =270 cm−1, A 2 2 =± 95 cm−1, A 4 0 =−170 cm−1, A 4 2 =± 410 cm−1, A 4 4 =−1020 cm−1, A 6 0 =30 cm−1, A 6 2 =± 115 cm−1, und A 6 4 =−475 cm−1. Es gibt Anzeichen dafür, daß diese Parameter nicht das Aufspaltungsmuster angeregter Zustände höherer Energie beschreiben.

Résumé

On a calculé les paramètres du champ cristallin à partir de la séparation obtenue par levée de dégénerescence pour les niveaux de Tm3+ dans le grenat d'yttrium aluminium (YAlG). Les valeurs de ces paramètres sont: A 2 0 =270 cm−1, A 2 2 =±95 cm−1, A 4 0 =−170 cm−1, A 4 2 = ± 410 cm−1, A 4 4 =−1020 cm−1, A 6 0 =30 cm−1, A 6 2 =± 115 cm−1 et A 6 4 =−475 cm−1. Il existe des indications selon lesquelles ces paramètres ne décrivent pas l'aspect des séparations des états excités d'énergies plus élevées.

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Copyright information

© Springer-Verlag 1966

Authors and Affiliations

  • J. A. Koningstein
    • 1
  1. 1.E. W. R. Steacie Building of ChemistryCarleton UniversityOttawaCanada

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