Search NASA⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 2573473

Hierarchical domain structures in buckled ferroelectric free sheets

Pesquera, David [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000306813371)·Cordero-Edwards, Kumara [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)]·Checa, Marti [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000326076866)·Ivanov, Ilia [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000267262502)·Casals, Blai [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)]·Rosado, Marcos [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000339389132)·Caicedo, José Manuel [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000251924989)·Casado-Zueras, Laura [University of Zaragoza (Spain)]·Pablo-Navarro, Javier [University of Zaragoza (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)]·Magén, César [University of Zaragoza (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)]·Santiso, José [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)]·Domingo, Neus [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000252296638)·Catalan, Gustau [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)]·Sandiumenge, Felip [Institut de Ciéncia de Materials de Barcelona (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)] (ORCID:0000000313361529)
View original source ↗Read source document ↗Export metadata ↓

Abstract

Flat elastic sheets tend to display wrinkles and folds. From pieces of clothing down to two-dimensional crystals, these corrugations appear in response to strain generated by sheet compression or stretching, thermal or mechanical mismatch with other elastic layers, or surface tension. Extensively studied in metals, polymers and, — more recently — in van der Waals exfoliated layers, with the advent of thin single crystal freestanding films of complex oxides, researchers are now paying attention to novel microstructural effects induced by bending ferroelectric-ferroelastics, where polarization is strongly coupled to lattice deformation. Here we show that wrinkle undulations in BaTiO3 sheets bonded to a viscoelastic substrate transform into a buckle delamination geometry when transferred onto a rigid substrate. Using spatially resolved techniques at different scales (Raman, scanning probe and electron microscopy), we show how these delaminations in the free BaTiO3 sheets display a self-organization of ferroelastic domains along the buckle profile that strongly differs from the more studied sinusoidal wrinkle geometry. Moreover, we disclose the hierarchical distribution of a secondary set of domains induced by the misalignment of these folding structures from the preferred in-plane crystallographic orientations. Our results disclose the relevance of the morphology and orientation of buckling instabilities in ferroelectric free sheets, for the stabilization of different domain structures, pointing to new routes for domain engineering of ferroelectrics in flexible oxide sheets.

Explore related subjects

36 MATERIALS SCIENCEBucklingFerroelastic-ferroelectricsFreestanding oxidesHierarchical domain structures

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Pesquera, David [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000306813371), Cordero-Edwards, Kumara [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)], Checa, Marti [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000326076866), Ivanov, Ilia [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000267262502), Casals, Blai [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)], Rosado, Marcos [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000339389132), Caicedo, José Manuel [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)] (ORCID:0000000251924989), Casado-Zueras, Laura [University of Zaragoza (Spain)], Pablo-Navarro, Javier [University of Zaragoza (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)], Magén, César [University of Zaragoza (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)], Santiso, José [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)], Domingo, Neus [Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)] (ORCID:0000000252296638), Catalan, Gustau [Catalan Institute of Nanoscience and Nanotechnology (ICN2)(Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain); Barcelona Institute of Science and Technology (BIST) (Spain)], Sandiumenge, Felip [Institut de Ciéncia de Materials de Barcelona (Spain); Consejo Superior de Investigaciones Cientificas (CSIC) (Spain)] (ORCID:0000000313361529). 2025-04-24. Hierarchical domain structures in buckled ferroelectric free sheets. https://doi.org/10.1016/j.actamat.2025.121080

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

DOE OSTI2026

Cyclic moisture reactivation of calcium sorbents for long duration thermochemical energy storage

The transition to a flexible and reliable energy infrastructure, using electro-thermal energy generation technologies such as geothermal, concentrated solar power, and nuclear, usually demands simultaneous advancement of thermal energy storage (TES) to support on-demand electricity generation and industrial applications while mitigating the inherent intermittency of renewable energy sources and power outages from direct energy generation. Among TES technologies, thermochemical energy storage (TCES) based on calcium looping emerges as a compelling high-power energy storage candidate due to its high reaction enthalpy, compatibility with elevated operating temperatures, and abundance of low-cost materials. However, the long-term durability of calcium-based sorbents for TCES is hindered by surface sintering and particle aggregation, leading to performance degradation over repeated thermal cycles. This study explores a moisture hydration-based strategy to regenerate a degraded calcium sorbent and mitigate performance degradation for long duration TCES. The addition of moisture transforms calcium oxide into calcium hydroxide and produces intercalation water layers, associated with a regenerated surface area and reduced calcium oxide crystallite size. Both these effects are beneficial in restoring the sorbents' reactivity for carbonization. Additionally, an optimized hydration-assisted reactivation protocol balances the recovered energy storage capacity with heating penalty required for moisture removal from hydrated samples, resulting in an enhanced energy storage capacity up to 176% compared to benchmark sorbents that undergo cycling without reactivation after 60 cycles. In conclusion, these results highlight the potential of hydration-assisted reactivation to enhance the long-term performance of TCES, providing an effective pathway to advancing electro-thermal storage technologies.

36 MATERIALS SCIENCE↗