Growth and structural characterization of RbTi1−xGexOPO4 crystals

Autor:	Alexandra Peña, A. Vilalta, J. J. Carvajal, Jaume Massons, Francesc Díaz, Magdalena Aguiló
Rok vydání:	2008
Předmět:	business.industry Chemistry Analytical chemistry Nonlinear optics chemistry.chemical_element Second-harmonic generation Germanium Crystal growth Condensed Matter Physics Thermal expansion Inorganic Chemistry Optics Thermal Materials Chemistry Curie temperature Anisotropy business
Zdroj:	Journal of Crystal Growth. 310:2633-2639
ISSN:	0022-0248
DOI:	10.1016/j.jcrysgro.2008.01.009
Popis:	RbTi 1− x Ge x OPO 4 single crystals were successfully grown from fluxes containing WO 3 . The evolution of the cell parameters with the content of Ge and the temperature was analyzed. The thermal expansion coefficients for RbTi 0.965 Ge 0.035 OPO 4 obtained resulted in a much-reduced thermal anisotropy when compared with RbTiOPO 4 (RTP). The Curie temperature of this material dramatically shifted to lower temperatures when Ge is present in the crystals, and it decomposes at a lower temperature when compared with RTP. Morphologically, we observed that the {1 0 0} form tended to disappear in the final shape of the crystals containing Ge. Finally, the second-harmonic generation efficiency of RbTi 0.965 Ge 0.035 OPO 4 crystals is reduced to a quarter of that exhibited by RTP, when measured by the powder technique.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7b124631d893e8445a52ca5bcaa98b2 https://doi.org/10.1016/j.jcrysgro.2008.01.009 Zobrazit plný text záznamu Full Text from ScienceDirect