Effect of temperature on dislocation-tuned dielectricity and piezoelectricity in single-crystal BaTiO&lt;sub&gt;3&lt;/sub&gt;

Dietrich, Felix; Ni, Fan; Fulanović, Lovro; Zhou, Xiandong; Isaia, Daniel; Braga Groszewicz, P.; Zhang, Chunlin; Xu, Bai Xiang; Rödel, Jürgen

doi:10.1063/5.0191394

Effect of temperature on dislocation-tuned dielectricity and piezoelectricity in single-crystal BaTiO₃

Title

Effect of temperature on dislocation-tuned dielectricity and piezoelectricity in single-crystal BaTiO₃

Author

Dietrich, Felix (Technische Universität Darmstadt)
Ni, Fan (Technische Universität Darmstadt)
Fulanović, Lovro (Technische Universität Darmstadt)
Zhou, Xiandong (Sichuan University)
Isaia, Daniel (Technische Universität Darmstadt)
Braga Groszewicz, P. (TU Delft RST/Storage of Electrochemical Energy)
Zhang, Chunlin (Physcience Optoelectronics Co., Ltd, Beijing)
Xu, Bai Xiang (Technische Universität Darmstadt)
Rödel, Jürgen (Technische Universität Darmstadt)

Date

2024

Abstract

The pinning-controlled mobility of ferroelectric/ferroelastic domain walls is an important part of managing polarization switching and determining the final properties of ferroelectric and piezoelectric materials. Here, we assess the impact of temperature on dislocation-induced domain wall pinning as well as on dislocation-tuned dielectric and piezoelectric response in barium titanate single crystals. Our solid-state nuclear magnetic resonance spectroscopy results indicate that the entire sample exclusively permits in-plane domains, with their distribution remaining insensitive to temperature changes below the Curie temperature (T_C). The domain wall pinning field monotonically decreases with increasing temperature up to T_C, as evidenced by a combination of experimental observations and phase-field simulations. Our work highlights the promising potential of dislocation engineering in controlling domain wall mobility within bulk ferroelectrics.

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DOI

https://doi.org/10.1063/5.0191394

Embargo date

2024-09-11

ISSN

0003-6951

Source

Applied Physics Letters, 124 (11)

Bibliographical note

Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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Institutional Repository

Document type

journal article

Rights

Files

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Effect of temperature on dislocation-tuned dielectricity and piezoelectricity in single-crystal BaTiO3

Effect of temperature on dislocation-tuned dielectricity and piezoelectricity in single-crystal BaTiO₃