Single crystal structure and SHG of defect pyrochlores CsBVMoO6 (BV=Nb,Ta)
| Autor: | R. P. Yavetskiy, Georgii K. Fukin, E. V. Borisov, N. V. Saharov, A. V. Boryakov, E.V. Suleimanov, S. I. Surodin, E. N. Borisov, D.G. Fukina |
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| Rok vydání: | 2016 |
| Předmět: |
Flux method
Materials science Lithium niobate Second-harmonic generation 02 engineering and technology Crystal structure 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Electronic Optical and Magnetic Materials Inorganic Chemistry Faceting chemistry.chemical_compound Crystallography Octahedron chemistry Polarizability Materials Chemistry Ceramics and Composites Physical and Theoretical Chemistry 0210 nano-technology Single crystal |
| Zdroj: | Journal of Solid State Chemistry. 241:64-69 |
| ISSN: | 0022-4596 |
| Popis: | The crystal structure and non-linear optical properties of CsNbMoO6 and CsTaMoO6 defect pyrochlores have been studied. The single crystals of these compounds grown by the flux method possess an octahedral faceting and reach up to 50 µm in size. The crystal structures of CsBVMoO6 (BV=Nb, Ta) were investigated by X-ray diffraction method. Both compounds crystallize in the cubic symmetry with noncentrosymmetric space group F-43m. The second harmonic generation of CsNbMoO6 and CsTaMoO6was found to be 1.6×10−2 and 8.5×10−4 of lithium niobate, correspondingly. It has been determined that distortions of [MO6] polyhedra (M=Nb, Ta, Mo) as well as polarizability and covalency of Nb–O and Ta–O bonds have a great effect on the second harmonic generation. |
| Databáze: | OpenAIRE |
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