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BaZr.sub.0.5./sub.Ti.sub.0.5./sub.O.sub.3./sub.: Lead-free relaxor ferroelectric or dipolar glass

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    0470511 - FZÚ 2017 RIV US eng J - Journal Article
    Filipič, C. - Kutnjak, Z. - Pirc, R. - Canu, G. - Petzelt, Jan
    BaZr0.5Ti0.5O3: Lead-free relaxor ferroelectric or dipolar glass.
    Physical Review B. Roč. 93, č. 22 (2016), 1-7, č. článku 224105. ISSN 2469-9950. E-ISSN 2469-9969
    Institutional support: RVO:68378271
    Keywords : relaxor ferroelectric * dipolar glass * dielectric relaxation * Edwards-Anderson parameter
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 3.836, year: 2016

    BZT-50 ceramics was studied by dielectric spectroscopy below 1 MHz at 300-10 K and analysed including bias electric field up to 28 kV/cm. No stable ferroelectric phase can be induced, which indicates a dipolar glass behavior. The broad dielectric relaxation can be fitted by a Vogel-Fulcher law with a low freezing temperature and the evaluated Edwards-Anderson parameter obeys the spherical random bond - random field model of relaxors.
    Permanent Link: http://hdl.handle.net/11104/0268131

     
     
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