We measured optical absorption and magnetic circular dichroism spectra of Na0.4Ho0.6F2.2 single crystal in the region of 5I8→ 5F3, 5F2 and 3K8 transitions in Ho3+ ion at 90 K and room temperature. Paramagnetic magneto-optical activities (MOA) of the transitions were found for these two temperatures and compared with the theory based on the nature of f-f transitions allowance. It was shown that nature of allowance of three considered transitions is different. The MCD spectra were also analyzed in approximation of the |J,±MJ⟩ wave functions of the free atom and using concept of the crystal quantum number. Using this concept and experimental paramagnetic MOA, we found that MJeff = 2.1 for the initial state of the 5I8→ 5F3 transition.
|State||Published - Apr 2021|
Bibliographical noteFunding Information:
A.V. Malakhovskii and V.V. Sokolov acknowledge the financing of the reported study by the Russian Foundation for Basic Researches grant 19-02-00034 and by the Russian Foundation for Basic Research , Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project: number 19-42-240003 “Influence of the local environment on magneto-optical properties of f-f transitions in rare-earth aluminum and iron borates.” D.N. Karimov acknowledges the financing support by the Ministry of Science and Higher Education of Russia within the State assignment FSRC « Crystallography and Photonics » of Russian Academy of Sciences .
© 2021 Elsevier B.V.
- Fluoride crystals Ho ions
- Magnetic circular dichroism
- f-f transitions