Properties of BaTiO3 confined in opal matrices - lattice packings of nanospheres silica dioxide
Using the sol-gel technique, BaTiO 3 was embedded in opal matrices that are the lattice packings of silica dioxide nanospheres for the first time. The room-temperature IR and Raman spectra clearly show characteristic vibrational modes of the ferroelectrically distorted TiO 6 octahedra without any lo...
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Format: | Tagungsbericht |
Sprache: | eng |
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Zusammenfassung: | Using the sol-gel technique, BaTiO 3 was embedded in opal matrices that are the lattice packings of silica dioxide nanospheres for the first time. The room-temperature IR and Raman spectra clearly show characteristic vibrational modes of the ferroelectrically distorted TiO 6 octahedra without any long-range order. Raman spectra bring evidence of a diffuse ferroelectric phase transition in the opal-BaTiO 3 composite. |
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DOI: | 10.1109/LFNM.2010.5624187 |