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Broadband dielectric, terahertz, and infrared spectroscopy of BaTiO.sub.3./sub.-BaZrO.sub.3./sub. solid solution: from proper ferroelectric over diffuse and relaxor ferroelectrics and dipolar glass to normal dielectric

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    0552556 - FZÚ 2022 RIV DE eng J - Journal Article
    Petzelt, Jan - Bovtun, Viktor - Nuzhnyy, Dmitry - Kempa, Martin - Savinov, Maxim - Pasciak, Marek - Kamba, Stanislav - Canu, G. - Buscaglia, V.
    Broadband dielectric, terahertz, and infrared spectroscopy of BaTiO3-BaZrO3 solid solution: from proper ferroelectric over diffuse and relaxor ferroelectrics and dipolar glass to normal dielectric.
    Physica Status Solidi B. Roč. 258, č. 10 (2021), č. článku 2100259. ISSN 0370-1972. E-ISSN 1521-3951
    R&D Projects: GA MŠMT(CZ) EF16_019/0000760; GA ČR(CZ) GF20-20326L
    Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
    Institutional support: RVO:68378271
    Keywords : soft mode * relaxor * phase transition
    OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
    Impact factor: 1.782, year: 2021
    Method of publishing: Limited access
    https://doi.org/10.1002/pssb.202100259

    The properties of broadband dielectric spectra of the (1 - x)BaTiO3-xBaZrO3 (BZT-x) solid solution are reviewed and complemented. The spectra are characterized by an overdamped central mode in the microwave range which weakens on cooling. The soft mode and central mode do not soften appreciably and do not contribute substantially to the low-frequency permittivity maximum. The most important dielectric contribution is brought by Cole-Cole relaxation assigned to hopping of Ti ions in the BaTiO3 clusters.
    Permanent Link: http://hdl.handle.net/11104/0327667

     
     
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