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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2001, Volume 74, Issue 4, Pages 244–247
(Mi jetpl4193)
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This article is cited in 20 scientific papers (total in 20 papers)
CONDENSED MATTER
Crystal structure and optical activity of La$_3$Nb$_{0.5}$Ga$_{5.5}$O$_{14}$ and Sr$_3$Ga$_2$Ge$_4$O$_{14}$ single crystals of the langasite family
V. N. Molchanov, B. A. Maksimov, A. F. Kondakov, T. S. Chernaya, Yu. V. Pisarevskii, V. I. Simonov Institute of Cristallography Russian Academy of Sciences, Moscow
Abstract:
Precision X-ray structural studies of the La$_3$Nb$_{0.5}$Ga$_{5.5}$O$_{14}$ and Sr$_3$Ga$_2$Ge$_4$O$_{14}$ single crystals were carried out. The space group $P321$ was confirmed. The anomalous X-ray scattering was taken into account to establish the absolute structures (chirality) of the crystals; they proved to be of different sign. The structural features responsible for the optical activity of crystals were revealed, and the dependence of the magnitude and sign of specific rotation on the structural parameters of these compounds were determined.
Received: 17.07.2001
Citation:
V. N. Molchanov, B. A. Maksimov, A. F. Kondakov, T. S. Chernaya, Yu. V. Pisarevskii, V. I. Simonov, “Crystal structure and optical activity of La$_3$Nb$_{0.5}$Ga$_{5.5}$O$_{14}$ and Sr$_3$Ga$_2$Ge$_4$O$_{14}$ single crystals of the langasite family”, Pis'ma v Zh. Èksper. Teoret. Fiz., 74:4 (2001), 244–247; JETP Letters, 74:4 (2001), 222–225
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https://www.mathnet.ru/eng/jetpl4193 https://www.mathnet.ru/eng/jetpl/v74/i4/p244
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Abstract page: | 149 | Full-text PDF : | 67 | References: | 1 |
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