| Autor: |
Zhdanov, G. S., Kolontsova, E. V., Korneev, A. E., Ivanov, S. A. |
| Zdroj: |
Ferroelectrics; January 1978, Vol. 21 Issue: 1 p463-465, 3p |
| Abstrakt: |
Some changes observed in single crystal LiNbO3 and LITaO3, when the temperature was raised from 20 to 750°C are compared using well-known results in infrared spectroscopy, Raman spectra and data which were obtained using the method of diffuse scattering. The observed x-ray diffraction effects in single crystal LiNbO3 when heated are compared with those which are revealed in stoichiometry deviation (the ratio Li/Nb is changed from 0.895 to 1.00) and the influence of the radiation (∼4×1020 nsm-2; E ≥ 0.5 meV, TIrrad, ≃ 150°C). The results of space distribution of intensity near some reciprocal lattice nodes in stoichiometric crystal LiNbO3 and LiTaO3 at 20°C which are obtained with the help of an autodifractometer "Syntex P1" (Mo Ka) are also given. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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