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This article is cited in 2 scientific papers (total in 2 papers)
Spectroscopy of condensed matter
Structural specific features of solid solutions Nd$_{x}$Gd$_{1-x}$Cr$_{3}$(BO$_{3}$)$_{4}$
K. N. Boldyrevab, N. N. Kuzminabc, E. A. Dobretsovad a Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow
b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
c Lomonosov Moscow State University
d Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow
Abstract:
Optical investigations of crystals of solid solutions Nd$_{x}$Gd$_{1-x}$Cr$_{3}$(BO$_{3}$)$_{4}$, 0.01 $\le x\le$ 1, have been performed. Absorption spectra in the range of wavenumbers 11 000–15 000 cm$^{-1}$ recorded at cryogenic temperatures (16 K) reveal a significant effect of the concentration of Nd$^{3+}$ ions in the structure on the absorption in the near infrared range of the spectrum due to $f$–$f$ transitions in the Nd$^{3+}$ ion. It has been found that, at a concentration of $х>$ 0.6, two nonequivalent Nd$^{3+}$ centers are observed in the absorption spectra, which is explained by the presence of two polytypic modifications.
Keywords:
rare-earth chromium borates, crystal structure, polytypy, Fourier spectroscopy.
Received: 22.09.2020 Revised: 22.09.2020 Accepted: 05.10.2020
Citation:
K. N. Boldyrev, N. N. Kuzmin, E. A. Dobretsova, “Structural specific features of solid solutions Nd$_{x}$Gd$_{1-x}$Cr$_{3}$(BO$_{3}$)$_{4}$”, Optics and Spectroscopy, 129:1 (2021), 41–45; Optics and Spectroscopy, 129:1 (2021), 37–41
Linking options:
https://www.mathnet.ru/eng/os205 https://www.mathnet.ru/eng/os/v129/i1/p41
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