Hybrid polar state in epitaxial (111) PbSc.sub.0.5./sub.Nb.sub.0.5./sub.O.sub.3./sub. relaxor ferroelectric films

0505001 - FZÚ 2020 RIV US eng J - Journal Article
Perantie, J. - Savinov, Maxim - Kocourek, Tomáš - Jelínek, Miroslav - Jantunen, H. - Dejneka, Alexandr - Tyunina, Marina
Hybrid polar state in epitaxial (111) PbSc_0.5Nb_0.5O₃ relaxor ferroelectric films.
Physical Review Materials. Roč. 3, č. 1 (2019), s. 1-7, č. článku 014403. ISSN 2475-9953. E-ISSN 2475-9953
R&D Projects: GA MŠMT EF16_019/0000760
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : relaxor ferroelectrics * dipolar state * ferroelectric films * peculiar hybrid
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 3.337, year: 2019
Method of publishing: Limited access
https://doi.org/10.1103/physrevmaterials.3.014403

In relaxor ferroelectrics, the interplay between the short-range-order dipolar state and long-range-order ferroelectric state leads to outstanding response functions, which enable valuable capacitor, electromechanical, pyroelectric, and electrocaloric applications. Advanced applications are envisaged with epitaxial relaxor ferroelectric films, whose fundamentals are still poorly explored. In particular, frustration of ferroelectricity, contrasting the bulk behavior, has been found and ascribed to nonpolar crystal orientation in (001) epitaxial films of archetypical lead-based relaxors. Here, a peculiar hybrid polar state, where coexisting long-range and short-range orders persist to very low temperatures, is demonstrated in epitaxial polar-oriented (111) PbSc0.5Nb0.5O3 films.
Permanent Link: http://hdl.handle.net/11104/0296528