Raman scattering on electronic levels in rare-earth iron borates RFe3(BO3)4
Institute for Spectroscopy RAS, 108840 Troitsk, Moscow, Russia
* Corresponding author: firstname.lastname@example.org
Published online: 13 December 2016
We have performed a Raman scattering study for single crystals of the rare-earth (RE) iron borates RFe3(BO3)4, R = Nd, Tb, Pr, in the range of temperatures 3-300 К. Electronic Raman scattering on the 4f levels of RE ions was registered, which enabled us to specify the schemes of crystal-field levels within ground multiplets of the RE ions. A splitting of the Kramers doublets in electronic Raman spectra of the neodymium iron borate testifies a magnetic ordering of the compound. Raman scattering from a coupled mode of the spin oscillations of the Fe and Nd subsystems was observed in NdFe3(BO3)4.
© The Authors, published by EDP Sciences, 2017
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.