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Influence of poling on far-infrared response of lead zirconate titanate ceramics

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    0331745 - FZÚ 2010 RIV US eng J - Journal Article
    Simon, E. - Hlinka, Jiří - Kamba, Stanislav - Gregora, Ivan - Erhart, J.
    Influence of poling on far-infrared response of lead zirconate titanate ceramics.
    [Infračervaná odezva pólovaných PZT keramik.]
    Journal of Applied Physics. Roč. 106, č. 7 (2009), 074104/1-074104/5. ISSN 0021-8979. E-ISSN 1089-7550
    R&D Projects: GA AV ČR KAN301370701; GA MŠMT ME08109; GA ČR GA202/06/0411
    Institutional research plan: CEZ:AV0Z10100520
    Keywords : ceramics * dielectric polarisation * infrared spectra * lead compounds * phonons
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 2.072, year: 2009

    The paper describes experiments revealing the anisotropy of the macroscopic dielectric response of poled lead zirconate titanate ceramics in the phonon frequency region. The results are discussed in terms of distinct polar phonon contributions and effective medium theory. The anisotropy probed in far-infrared experiments can be used to evaluate efficiency of the poling and/or depoling processes.

    Článek popisuje experimenty prokazující anizotropii makroskopické dielektrické odezvy pólovaných PZT keramik ve frekvenční oblasti s disperzí od polárních kmitů krystalové mříže. Anizotropie může sloužit k vyhodnocení stupně pólování těchto materiálů.
    Permanent Link: http://hdl.handle.net/11104/0177179

     
     
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