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Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions
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SYSNO ASEP 0492458 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Two-phase dielectric polar structures in 0.1NBT-0.6ST-0.3PT solid solutions Author(s) Svirskas, Š. (LT)
Shvartsman, V.V. (DE)
Dunce, M. (LT)
Ignatans, R. (LT)
Birks, E. (LT)
Ostapchuk, Tetyana (FZU-D) RID, ORCID
Kamba, Stanislav (FZU-D) RID, ORCID, SAI
Lupascu, D.C. (DE)
Banys, J. (LT)Number of authors 9 Source Title Acta Materialia. - : Elsevier - ISSN 1359-6454
Roč. 153, Jul (2018), s. 117-125Number of pages 9 s. Language eng - English Country GB - United Kingdom Keywords ferroelectrics ; phase transition ; PFM ; dielectric spectroscopy Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects LD15014 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 UT WOS 000437391500012 EID SCOPUS 85046513950 DOI 10.1016/j.actamat.2018.04.052 Annotation In this work we address the peculiarities of the macroscopic responses in ternary 0.1Na0.5Bi0.5TiO(3)0.6SrTiO(3)-0.3PbTiO(3) (0.1NBT-0.6ST-0.3PT) solid solutions. These solid solutions exhibit a spontaneous first order relaxor to normal ferroelectric phase transition. The phase transition is accompanied by a broad dielectric relaxation which expands over 10 orders of magnitude in frequency just above the phase transition temperature. The temperature dependence of polarization shows that non-zero net polarization persists above the phase transition temperature. Below the phase transition temperature, it is not possible to describe the temperature dependence of polarization with a power law function which is valid in normal ferroelectrics. The piezoresponse force microscopy studies reveal that 0.1NBT-0.6ST-0.3PT solids solutions display several local polarization patterns which arise due to the bimodal distribution of grains in the ceramics. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2019
Number of the records: 1