Magneto-optical activity and luminescence of f-f transitions in trigonal crystal TmAl3(BO3)4

A. V. Malakhovskii, U. V. Valiev, I. S. Edelman, A. E. Sokolov, I. Yu Chesnokov, I. A. Gudim

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Absorption and magnetic circular dichroism (MCD) spectra in the region of the 3H63H4, 3H63F3, 3F 2, 3H61G4, 3H61D2 electron transitions and also luminescence spectrum of the 1D23F4 transition in Tm3+ ion in the TmAl 3(BO3)4 single crystal were measured in the temperature range 95-290 K. Temperature dependences of magneto-optical activity (MOA) of the absorption bands (ratio of the zero moments of MCD and absorption bands) were determined. Mechanisms responsible for MOA of f-f transitions and its temperature dependence in ions with the integer total magnetic moment are analyzed. It is shown that in TmAl3(BO3)4 crystal the temperature-independent paramagnetic effect due to mixing of the electronic states by the magnetic field (so-called B-term) gives the prevailing contribution into MOA of the studied f-f transitions. In contrast to the absorption, luminescence spectrum demonstrates no MOA.

Original languageEnglish
Pages (from-to)1017-1021
Number of pages5
JournalOptical Materials
Issue number9
StatePublished - Jul 2010
Externally publishedYes

Bibliographical note

Funding Information:
The work was supported by the Russian Foundation for Basic Researches , Grant No. 07-02-00704 .


  • Luminescence
  • Magnetic circular dichroism
  • Magneto-optical activity


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