DOI: 10.1038/ncomms15768. Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy

Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy

10.1038/ncomms15768

Crossref journal-article

Springer Science and Business Media LLC

Nature Communications (297)

Abstract

AbstractThe properties of ferroelectric domain walls can significantly differ from those of their parent material. Elucidating their internal structure is essential for the design of advanced devices exploiting nanoscale ferroicity and such localized functional properties. Here, we probe the internal structure of 180° ferroelectric domain walls in lead zirconate titanate (PZT) thin films and lithium tantalate bulk crystals by means of second-harmonic generation microscopy. In both systems, we detect a pronounced second-harmonic signal at the walls. Local polarimetry analysis of this signal combined with numerical modelling reveals the existence of a planar polarization within the walls, with Néel and Bloch-like configurations in PZT and lithium tantalate, respectively. Moreover, we find domain wall chirality reversal at line defects crossing lithium tantalate crystals. Our results demonstrate a clear deviation from the ideal Ising configuration that is traditionally expected in uniaxial ferroelectrics, corroborating recent theoretical predictions of a more complex, often chiral structure.

Bibliography

Cherifi-Hertel, S., Bulou, H., Hertel, R., Taupier, G., Dorkenoo, K. D., Andreas, C., Guyonnet, J., Gaponenko, I., Gallo, K., & Paruch, P. (2017). Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy. Nature Communications, 8(1).

Authors 10

Salia Cherifi-Hertel (first)
Hervé Bulou (additional)
Riccardo Hertel (additional)
Grégory Taupier (additional)
Kokou Dodzi Dorkenoo (additional)
Christian Andreas (additional)
Jill Guyonnet (additional)
Iaroslav Gaponenko (additional)
Katia Gallo (additional)
Patrycja Paruch (additional)

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Dates

Type	When
Created	8 years, 2 months ago (June 8, 2017, 7:18 a.m.)
Deposited	2 years, 8 months ago (Dec. 22, 2022, 8:14 p.m.)
Indexed	5 days, 19 hours ago (Aug. 28, 2025, 8:01 a.m.)
Issued	8 years, 2 months ago (June 8, 2017)
Published	8 years, 2 months ago (June 8, 2017)
Published Online	8 years, 2 months ago (June 8, 2017)

Funders 0

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BibTeX

@article{Cherifi_Hertel_2017, title={Non-Ising and chiral ferroelectric domain walls revealed by nonlinear optical microscopy}, volume={8}, ISSN={2041-1723}, url={http://dx.doi.org/10.1038/ncomms15768}, DOI={10.1038/ncomms15768}, number={1}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Cherifi-Hertel, Salia and Bulou, Hervé and Hertel, Riccardo and Taupier, Grégory and Dorkenoo, Kokou Dodzi and Andreas, Christian and Guyonnet, Jill and Gaponenko, Iaroslav and Gallo, Katia and Paruch, Patrycja}, year={2017}, month=jun }

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