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Crystals 2017, 7(3), 88;

Crystal Growth and Glass-Like Thermal Conductivity of Ca3RE2(BO3)4 (RE = Y, Gd, Nd) Single Crystals

Institute for Single Crystals, NASU, Nauki Ave. 60, 61001 Kharkov, Ukraine
Institute of Physics, PAS, Aleja Lotników 32/46, PL- 02668 Warsaw, Poland
Department of Exper. and Theor. Physics, Petrovsky Bryansk State University, Bezhitskaya Str. 14, 241036 Bryansk, Russia
Author to whom correspondence should be addressed.
Academic Editors: Alain Largeteau and Helmut Cölfen
Received: 23 December 2016 / Revised: 20 February 2017 / Accepted: 9 March 2017 / Published: 17 March 2017
(This article belongs to the Special Issue Crystal Growth for Optoelectronic and Piezoelectric Applications)
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Crystal growth and thermal properties of binary borates, Ca3RE2(BO3)4 (RE = Y, Gd, Nd), are considered promising crystals for laser applications. These single crystals were grown by the Czochralski method. The crystal and defect structure were characterized. Volumetric chemical methods without prior separation of the components were developed and applied for the determination of the dependence of chemical compositions of the crystals on the growth conditions. The thermal conductivity was investigated in the 50–300 K range. The character of the temperature dependence of thermal conductivity was found to be similar to that of glass. The possible reasons of the observed features of the thermal conductivity were analyzed. View Full-Text
Keywords: binary borate; Czochralski method; crystal composition; thermal conductivity binary borate; Czochralski method; crystal composition; thermal conductivity

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Gudzenko, L.V.; Kosmyna, M.B.; Shekhovtsov, A.N.; Paszkowicz, W.; Sulich, A.; Domagała, J.Z.; Popov, P.A.; Skrobov, S.A. Crystal Growth and Glass-Like Thermal Conductivity of Ca3RE2(BO3)4 (RE = Y, Gd, Nd) Single Crystals. Crystals 2017, 7, 88.

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