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Properties of BaTiO3 confined in opal matrices — lattice packings of nanospheres silica dioxide

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13 Author(s)
Nuzhnyy, D. ; Inst. of Phys. ASCR, Prague, Czech Republic ; Vanek, P. ; Petzelt, J. ; Bovtun, V.
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Using the sol-gel technique, BaTiO3 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 TiO6 octahedra without any long-range order. Raman spectra bring evidence of a diffuse ferroelectric phase transition in the opal-BaTiO3 composite.

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Laser and Fiber-Optical Networks Modeling (LFNM), 2010 10th International Conference on

Date of Conference:

12-14 Sept. 2010