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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Photocontrolled Strain in Polycrystalline Ferroelectrics via Domain Engineering Strategy

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Rubio-Marcos, Fernando [1] ; Del Campo, Adolfo [1] ; Ordonez-Pimentel, Jonathan [2, 3] ; Venet, Michel [2] ; Rojas-Hernandez, Rocio Estefania [4] ; Paez-Margarit, David [3] ; Ochoa, Diego A. [3] ; Fernandez, Jose F. [1] ; Garcia, Jose E. [3]
Total Authors: 9
[1] CSIC, Dept Electroceram, Inst Ceram & Vidrio, Madrid 28049 - Spain
[2] Univ Fed Sao Carlos, Dept Phys, BR-13565905 Sao Carlos - Brazil
[3] Univ Politecn Cataluna, Dept Phys, BarcelonaTech, Barcelona 08034 - Spain
[4] Tallinn Univ Technol, Dept Mech & Ind Engn, EE-19180 Tallinn - Estonia
Total Affiliations: 4
Document type: Journal article
Source: ACS APPLIED MATERIALS & INTERFACES; v. 13, n. 17, p. 20858-20864, MAY 5 2021.
Web of Science Citations: 0

The use of photonic concepts to achieve nanoactuation based on light triggering requires complex architectures to obtain the desired effect. In this context, the recent discovery of reversible optical control of the domain configuration in ferroelectrics offers a light-ferroic interplay that can be easily controlled. To date, however, the optical control of ferroelectric domains has been explored in single crystals, although polycrystals are technologically more desirable because they can be manufactured in a scalable and reproducible fashion. Here we report experimental evidence for a large photostrain response in polycrystalline BaTiO3 that is comparable to their electrostrain values. Domains engineering is performed through grain size control, thereby evidencing that charged domain walls appear to be the functional interfaces for the light-driven domain switching. The findings shed light on the design of high-performance photoactuators based on ferroelectric ceramics, providing a feasible alternative to conventional voltage-driven nanoactuators. (AU)

FAPESP's process: 17/17872-1 - New lead free magnetoelectric composites with high performance
Grantee:Michel Venet Zambrano
Support Opportunities: Scholarships abroad - Research