Magneto-optical properties of Dy3+ in oxide glasses: The origin of the magneto-optical activity of f-f transitions and its anomalous temperature dependence

A. V. Malakhovskii, V. A. Isachenko, A. L. Sukhachev, A. M. Potseluyko, V. N. Zabluda, T. V. Zarubina, I. S. Edelman

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Abstract

The temperature dependence of the absorption spectra and magnetic circular dichroism due to f-f transitions from the 6 H 15/2 to 6 F 5/2 and 6(F 7/2 + H 5/2) states in the Dy3+ ion in (Dy2O 3-P2O5-SiO2-GeO2) and (Dy2O3-La2O3-Al2O 3-B2O3-SiO2-GeO2) glasses and the temperature dependence of the Faraday effect were studied. The temperature dependence of the Faraday effect caused by f-d transitions was found to differ from that of the magnetic circular dichroism due to f-f transitions. It was shown that f-f transitions occur preferentially in Dy3+ ions associated into clusters. The origin of the paramagnetic magneto-optical activity of f-f transitions was analyzed. It was shown that the contributions to this activity can differ in value and sign and that the ratio between these contributions depends on the transition type. In some cases, this difference results in an anomalous temperature dependence of the magneto-optical activity.

Original languageEnglish
Pages (from-to)701-707
Number of pages7
JournalPhysics of the Solid State
Volume49
Issue number4
DOIs
StatePublished - Apr 2007
Externally publishedYes

Bibliographical note

Funding Information:
ACKNOWLEDGMENTS This study was supported by the program “Development of the Scientific Potential of the Higher School” (2006–2008), project code RNP. 2.1.1.7376.

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