Optical second harmonic generation and ordering effects in the system of ferroelectric barium titanate nanocrystals |
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Authors: | SP Feofilov AA Kaplyanskii AB Kulinkin RI Zakharchenya |
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Institution: | A.F. Ioffe Physical-Technical Institute, St. Petersburg 194021, Russia |
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Abstract: | The temperature dependence of the optical second harmonic generation in nanocrystalline BaTiO3:Eu3+ revealed a strong hysteresis in the C4v-Oh ferroelectric phase transition region. The explanation of the effect by the ordering processes in the system of ferroelectric nanocrystals is confirmed by the experiments in an external electric field. |
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Keywords: | 42 70 Mp 77 84 -s 78 67 Bf |
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