Dielectric response of some relaxor ferroelectrics in a wide frequency range

0134482 - FZU-D 20030382 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
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]
Grant CEP: GA ČR GA202/01/0612; GA MŠMT OC 525.20
Výzkumný záměr: CEZ:AV0Z1010914
Klíčová slova: dielectric spectroscopy * relaxor ferroelectrics * dielectric relaxation
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus

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.
Trvalý link: http://hdl.handle.net/11104/0032383