Structural Specific Features of Solid Solutions NdxGd1 –xCr3(BO3)4

Optical investigations of crystals of solid solutions Nd x Gd 1 –   x Cr 3 (BO 3 ) 4 , 0.01 ≤ x ≤ 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...

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Bibliographic Details
Published in:Optics and spectroscopy 2021, Vol.129 (1), p.37-41
Main Authors: Boldyrev, K. N., Kuzmin, N. N., Dobretsova, E. A.
Format: Article
Language:English
Subjects:
Absorption spectra
Cryogenic temperature
Lasers
Near infrared radiation
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Solid solutions
Spectroscopy of Condensed Matter
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Summary:Optical investigations of crystals of solid solutions Nd x Gd 1 –   x Cr 3 (BO 3 ) 4 , 0.01 ≤ x ≤ 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.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X21010033