0603363 - FZÚ 2025 RIV US eng J - Článek v odborném periodiku
Bednyakov, Petr - Yudin, Petr - Tagantsev, A.K. - Hlinka, Jiří
Paradoxical creation of a polydomain pattern by electric field in BaTiO₃ crystal.
Physical Review B. Roč. 110, č. 21 (2024), č. článku 214107. ISSN 2469-9950. E-ISSN 2469-9969
Grant CEP: GA ČR(CZ) GJ20-05167Y; GA MŠMT(CZ) EH22_008/0004591
Institucionální podpora: RVO:68378271
Klíčová slova: charge * electric polarization * electrical properties * ferroelectricity
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.2, rok: 2023 ; AIS: 0.896, rok: 2023
Způsob publikování: Omezený přístup
Web výsledku:
https://doi.org/10.1103/PhysRevB.110.214107DOI: https://doi.org/10.1103/PhysRevB.110.214107

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.
Trvalý link: https://hdl.handle.net/11104/0360633


 
Vědecká data v ASEP:
OpenData Bednyakov PRB 110 (2024)