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Paradoxical creation of a polydomain pattern by electric field in BaTiO.sub.3./sub. crystal
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SYSNO ASEP 0603363 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Paradoxical creation of a polydomain pattern by electric field in BaTiO3 crystal Author(s) Bednyakov, Petr (FZU-D) RID, ORCID
Yudin, Petr (FZU-D) ORCID
Tagantsev, A.K. (CH)
Hlinka, Jiří (FZU-D) RID, ORCIDNumber of authors 4 Article number 214107 Source Title Physical Review B. - : American Physical Society - ISSN 2469-9950
Roč. 110, č. 21 (2024)Number of pages 8 s. Language eng - English Country US - United States Keywords charge ; electric polarization ; electrical properties ; ferroelectricity Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) R&D Projects GJ20-05167Y GA ČR - Czech Science Foundation (CSF) EH22_008/0004591 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 001389506500005 EID SCOPUS 85213221563 DOI https://doi.org/10.1103/PhysRevB.110.214107 Annotation It is known that ferroelectric single crystals can be turned from a polydomain to a monodomain state by the application of an electric field. Here we report an unexpected opposite effect: the formation of through-the-crystal polydomain pattern in a monodomain BaTiO3 crystal in response to the applied electric field favoring the initial orientation of the polarization. The effect is achieved for special electric field direction which equally selects two domain states, which are present in the polydomain pattern. At the formation of the pattern, the new wedge domains propagate from the sides of the sample in the direction transverse to the electric field. The observations are rationalized in terms of a simple analytical model treating energies of competing domain configurations as functions of the electric field. The results of the analytical treatment are supported by phase field modeling. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2025 Electronic address https://doi.org/10.1103/PhysRevB.110.214107
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