Počet záznamů: 1

Properties of BaTiO.sub.3./sub. confined in opal matrices-lattice packings of nanospheres silica oxides

  1. 1.
    0353960 - FZU-D 2011 RIV UA eng C - Konferenční příspěvek (zahraniční konf.)
    Nuzhnyy, Dmitry - Vaněk, Přemysl - Petzelt, Jan - Bovtun, Viktor - Kempa, Martin - Gregora, Ivan - Savinov, Maxim - Krupková, Radmila - Studnička, Václav - Samoylovich, M.I. - Rinkevich, A.B.
    Properties of BaTiO3 confined in opal matrices-lattice packings of nanospheres silica oxides.
    Proceedings of 10th International Conference on Laser & Fiber-Optical Networks Modeling and 2nd IEEE International Workshop on THz Radiation: Basic Research & Applications. Sevastopol: IEEE, 2010 - (Sukoivanov, I.; Shulika, O.), s. 47-49. ISBN 978-1-4244-6995-6.
    [10th International Conference on Laser & Fiber-Optical Networks Modeling and 2nd IEEE International Workshop on THz Radiation: Basic Research & Applications /10./. Sevastopol (UA), 12.09.2010-14.09.2010]
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: nanocomposite * confined BaTiO3 * opal matrices * stiffened soft mode * effective dielectric properties
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

    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.
    Trvalý link: http://hdl.handle.net/11104/0193062