Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5460815 | Journal of Alloys and Compounds | 2017 | 11 Pages |
Abstract
Linearly polarized absorption spectra and magnetic circular dichroism (MCD) spectra of ErAl3(BO3)4 single crystal were measured in the range of 10000-27000 cmâ1 at 90 K. The Stark components of the ground and excited multiplets of Er3+ ion were identified in terms of the irreducible representations, basing on the linearly polarized absorption spectra. MCD spectra permitted us to measure the Zeeman splitting of some transitions and so to determine changes of the Landé factors along the C3 axis during these transitions. Additionally, the MCD spectra permitted us to identify some states in the |J,±MJã function approximation. In particular, it was shown that the ground state of the Er3+ ion in this approximation has MJ = ± 13/2 that corresponds to magnetic moment m = ±7.8 μB. Very intensive f-f vibronic transitions, corresponding to electron transitions from the upper components of the ground multiplet, were revealed. Energies of the local vibrations in a number of the excited states were found.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
A.V. Malakhovskii, V.V. Sokolov, I.A. Gudim,