Metal-ferroelectric supercrystals with periodically curved metallic layers

0545355 - FZÚ 2022 RIV GB eng J - Článek v odborném periodiku
Hadjimichae, M. - Li, Y. - Zatterin, E. - Chahine, G.A. - Conroy, M. - Moore, K. - O'Connel, E.N. - Ondrejkovič, Petr - Márton, Pavel - Hlinka, Jiří - Bangert, U. - Leake, S. - Zubko, P.
Metal-ferroelectric supercrystals with periodically curved metallic layers.
Nature Materials. Roč. 20, č. 4 (2021), s. 495-503. ISSN 1476-1122. E-ISSN 1476-4660
Grant CEP: GA ČR GX19-28594X
Institucionální podpora: RVO:68378271
Klíčová slova: heterostructures * ferroelectrics * x-ray diffraction * phase-field simulations * domain structure
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 47.656, rok: 2021
Způsob publikování: Omezený přístup
https://doi.org/10.1038/s41563-020-00864-6

Simultaneous manipulation of multiple boundary conditions in nanoscale heterostructures offers a versatile route to stabilizing unusual structures and emergent phases. Here, we show that a stable supercrystal phase comprising a three-dimensional ordering of nanoscale domains with tailored periodicities can be engineered in PbTiO3–SrRuO3 ferroelectric–metal superlattices. A combination of laboratory and synchrotron X-ray diffraction, piezoresponse force microscopy, scanning transmission electron microscopy and phase-field simulations reveals a complex hierarchical domain structure that forms to minimize the elastic and electrostatic energy. Our results show that multidomain ferroelectric systems can be exploited as versatile templates to induce large curvatures in correlated materials, and present a route for engineering correlated materials with modulated structural and electronic properties that can be controlled using electric fields.
Trvalý link: http://hdl.handle.net/11104/0322193