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Федеральный исследовательский центр 
«Красноярский научный центр
Сибирского отделения Российской академии наук»

Spectroscopic properties of HoFe3(BO3)(4), NdFe3(BO3)(4) and Ho0.75Nd0.25Fe3(BO3)(4) single crystals

Sukhachev, A. L.; Malakhovskii, A. V.; Aleksandrovsky, A. S.; Gudim, I. A.; Temerov, V. L. Source: OPTICAL MATERIALS, 83 87-92; 10.1016/j.optmat.2018.05.078 SEP 2018

Polarized absorption spectra of ferroborates HoFe3(BO3)4, NdFe3(BO3)4 and Ho0.75Nd0.25Fe3(BO3)4 were measured at room temperature in spectral range 4000–24500 cm−1 (400–2500 nm). The studied single crystals were grown from solution-melts. Intensities of the f-f transitions were measured and the Judd–Ofelt parameters Ωλ of Ho3+ and Nd3+ ions in the studied crystals were calculated. It was revealed that the crystals content not strongly influences the Judd–Ofelt parameters. The Ω2 parameter for Ho3+ ion is the most sensitive to the crystal content. Linear dichroism of the hypersensitive transitions appeared to be the largest one for both rare earth ions.

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