Dielectric response of some relaxor ferroelectrics in a wide frequency range

0134482 - FZU-D 20030382 RIV GB eng C - Conference Paper (international conference)
Bovtun, Viktor - Petzelt, Jan - Porokhonskyy, Viktor - Kamba, Stanislav - Ostapchuk, Tetyana - Savinov, Maxim - Samoukhina, Polina - Vilarinho, P. - Baptista, J.
Dielectric response of some relaxor ferroelectrics in a wide frequency range.
1 90265377 7. In: Grain Boundary Engineering in Electronic Materials. London: Maney Publishing, 2003 - (Freer, R.; Van Herle, J.; Petzelt, J.; Leach, C.), s. 109-121. British Ceramic Proceedings., 63. ISSN 0268-4373.
[Advanced Electroceramics:Grain Boundary Engineering. Madrid (ES), 24.03.2001-28.03.2001]
R&D Projects: GA ČR GA202/01/0612; GA MŠMT OC 525.20
Institutional research plan: CEZ:AV0Z1010914
Keywords : dielectric spectroscopy * relaxor ferroelectrics * dielectric relaxation
Subject RIV: BM - Solid Matter Physics ; Magnetism

Wide range dielectric response (10 2 -10 14 Hz) of model relaxor ferroelectrics PMN and PLZT are analysed and the common features are emphasised. Dynamics of polar nanoclusters are considered to be responsible for the relaxor behaviour. relaxational dielectric dispersion in a wide frquency range (10 2 -10 14 Hz), characteristic for the relaxor ferroelectrics, was also observed in doped quantum paraelectric.
Permanent Link: http://hdl.handle.net/11104/0032383