https://doi.org/10.1051/epjconf/201713203021
Raman scattering on electronic levels in rare-earth iron borates RFe3(BO3)4
Institute for Spectroscopy RAS, 108840 Troitsk, Moscow, Russia
* Corresponding author: klimin@isan.troitsk.ru
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
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