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Investigation of ferroelectric materials by the thermal noise method: advantages and limitations
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SYSNO ASEP 0470574 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Investigation of ferroelectric materials by the thermal noise method: advantages and limitations Author(s) Bednyakov, Petr (FZU-D) RID, ORCID
Shnaidshtein, I. V. (RU)
Strukov, B. A. (RU)Source Title Ferroelectrics. - : Taylor & Francis - ISSN 0015-0193
Roč. 500, č. 1 (2016), 203-217Number of pages 15 s. Language eng - English Country GB - United Kingdom Keywords thermal noise ; ferroelectricity ; thin films ; dielectric permittivity ; equivalent circuit Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA13-15110S GA ČR - Czech Science Foundation (CSF) Institutional support FZU-D - RVO:68378271 UT WOS 000386464100018 EID SCOPUS 84991489962 DOI 10.1080/00150193.2016.1229523 Annotation An overview of the dielectric properties of ferroelectrics by means of thermal noise method from 60s to our days is presented. Different realizations of the thermal noise method are discussed and the advantages and disadvantages are compared for bulk crystals and for thin films. A short overview of the application of the thermal noise method for measurements of dielectric properties of different objects (barium titanate and triglycine sulphate crystals and barium titanate thin films) is presented. The original method for thermal noise voltage characterization, based on digital data processing is demonstrated. The piezoactivity data for barium titanate crystals below phase transition temperature are obtained by thermal noise method. Barkhausen thermal noise data for barium titanate and triglycine sulphate crystals are analyzed below and above the phase transition temperature. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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