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Ferroelectrics in an electric field

By Petr Pavelka


The submitted thesis describes characteristics and use of ferroelectric materials which find their utilization in electrotechnical and electronics industry. The thesis is mainly aimed at their behaviour in the electrical field at various intensity. The method using an osciloscope is selected for measuring. For the main measuring in part of this thesis was produced experimental wafer with five samples which were subsequently mesuared. The VEE PRO program was used for creating of collecting datas for histeresis loop and it’s functionality was checked on wafer with five examples in measuring. During this measuring was also measured electric tension dependence of components of complex permittivity

Topics: feroelektrické kapalné krystaly; Curie temperature; Dielectrics; feroelectric materials; Curieova teplota; FRAM paměti; perovskitová keramika; polarizační jevy; polarization effect; Dielektrika; hysterezní smyčka; feroelektrické materiály; feroelectric liquid crystals; hysteretic look; FRAM memories; perovskite ceramics
Publisher: Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií
Year: 2012
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