Non-Ising domain walls in c-phase ferroelectric lead titanate thin films

Christian Weymann; Salia Cherifi-Hertel; Céline Lichtensteiger; Iaroslav  Gaponenko; Kokou Dodzi Dorkenoo; Aaron B. Naden; Patrycja Paruch

doi:10.1103/PhysRevB.106.L241404

Non-Ising domain walls in c-phase ferroelectric lead titanate thin films

Christian Weymann, Salia Cherifi-Hertel, Céline Lichtensteiger, Iaroslav Gaponenko, Kokou Dodzi Dorkenoo, Aaron B. Naden, Patrycja Paruch

Research output: Contribution to journal › Letter › peer-review

Abstract

Ferroelectrics are technologically important, with wide application in micromechanical systems, nonlinear optics, and information storage. Recent discoveries of exotic polarization textures in these materials, which can strongly influence their properties, have brought to the forefront questions about the nature of their domain walls: long believed to be primarily Ising, with locally null polarization. Here, combining three complementary techniques - second-harmonic generation microscopy, piezoresponse force microscopy, and transmission electron microscopy - to cover all the relevant length scales, we reveal the Néel character (non-Ising polarization oriented perpendicular to the wall) of 180° domain walls in c-phase tetragonal ferroelectric lead titanate epitaxial thin films, for both artificial and intrinsic domains at room temperature. Furthermore, we show that variations in the domain density - detected both optically and via local piezoresponse and then quantified by radial autocorrelation analysis - can give us insight into the underlying defect potential present in these materials.

Original language	English
Article number	L241404
Number of pages	8
Journal	Physical Review B
Volume	106
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevB.106.L241404
Publication status	Published - 20 Dec 2022

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Copyright © 2022 The Author(s). Open Access articles. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.
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Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale
Irvine, J. T. S. (PI), Baker, R. (CoI) & Zhou, W. (CoI)
EPSRC
1/04/18 → 2/09/20
Project: Standard
CRITICAT Equipment Account: CRITICAT Equipment Fund
Smith, A. D. (PI)
EPSRC
21/07/14 → 30/06/15
Project: Standard

Non-Ising domain walls in c-phase ferroelectric lead titanate thin films
Weymann, C. (Creator), Cherifi-Hertel, S. (Creator), Lichtensteiger, C. (Creator), Gaponenko, I. (Creator), Dorkenoo, K. D. (Creator), Naden, A. B. (Creator), Paruch, P. (Creator), Group, [.-F.-4.-B.-E. P. (Contributor), Weymann, C. (Contributor), Musy, L. (Contributor), Gaponenko, I. (Contributor), Bulanadi, R. A. Y. (Contributor), Lichtensteiger, C. (Contributor), Tueckmantel, P. (Contributor) & Paruch, P. (Contributor), Université de Genève, Yareta, 2022
DOI: 10.26037/yareta:teri72ux7fhqlgj435imm2ubiq
Dataset

Cite this

@article{95c6fe34e9f64030bf26da350e6e2729,

title = "Non-Ising domain walls in c-phase ferroelectric lead titanate thin films",

abstract = "Ferroelectrics are technologically important, with wide application in micromechanical systems, nonlinear optics, and information storage. Recent discoveries of exotic polarization textures in these materials, which can strongly influence their properties, have brought to the forefront questions about the nature of their domain walls: long believed to be primarily Ising, with locally null polarization. Here, combining three complementary techniques - second-harmonic generation microscopy, piezoresponse force microscopy, and transmission electron microscopy - to cover all the relevant length scales, we reveal the N{\'e}el character (non-Ising polarization oriented perpendicular to the wall) of 180° domain walls in c-phase tetragonal ferroelectric lead titanate epitaxial thin films, for both artificial and intrinsic domains at room temperature. Furthermore, we show that variations in the domain density - detected both optically and via local piezoresponse and then quantified by radial autocorrelation analysis - can give us insight into the underlying defect potential present in these materials.",

author = "Christian Weymann and Salia Cherifi-Hertel and C{\'e}line Lichtensteiger and Iaroslav Gaponenko and Dorkenoo, {Kokou Dodzi} and Naden, {Aaron B.} and Patrycja Paruch",

note = "Funding: This work was supported by Division II of the Swiss National Science Foundation under Project No. 200021_178782. A.B.N. gratefully acknowledges support from the EPSRC (Grants No. EP/R023751/1 and No. EP/L017008/1). S.C.-H. acknowledges the support of the French Agence Nationale pour la Recherche (ANR) through Grant No. ANR-18-CE92-0052 and the Programme d'Investissement d'Avenir ANR-10-IDEX-0002-02 of the University of Strasbourg under Contract No. ANR-11-LABX-0058_NIE. C.L. acknowledges the support from Division II of the Swiss National Science Foundation under Project No. 200021_200636. ",

year = "2022",

month = dec,

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doi = "10.1103/PhysRevB.106.L241404",

language = "English",

volume = "106",

journal = "Physical Review B",

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AU - Weymann, Christian

AU - Cherifi-Hertel, Salia

AU - Lichtensteiger, Céline

AU - Gaponenko, Iaroslav

AU - Dorkenoo, Kokou Dodzi

AU - Naden, Aaron B.

AU - Paruch, Patrycja

N1 - Funding: This work was supported by Division II of the Swiss National Science Foundation under Project No. 200021_178782. A.B.N. gratefully acknowledges support from the EPSRC (Grants No. EP/R023751/1 and No. EP/L017008/1). S.C.-H. acknowledges the support of the French Agence Nationale pour la Recherche (ANR) through Grant No. ANR-18-CE92-0052 and the Programme d'Investissement d'Avenir ANR-10-IDEX-0002-02 of the University of Strasbourg under Contract No. ANR-11-LABX-0058_NIE. C.L. acknowledges the support from Division II of the Swiss National Science Foundation under Project No. 200021_200636.

PY - 2022/12/20

Y1 - 2022/12/20

N2 - Ferroelectrics are technologically important, with wide application in micromechanical systems, nonlinear optics, and information storage. Recent discoveries of exotic polarization textures in these materials, which can strongly influence their properties, have brought to the forefront questions about the nature of their domain walls: long believed to be primarily Ising, with locally null polarization. Here, combining three complementary techniques - second-harmonic generation microscopy, piezoresponse force microscopy, and transmission electron microscopy - to cover all the relevant length scales, we reveal the Néel character (non-Ising polarization oriented perpendicular to the wall) of 180° domain walls in c-phase tetragonal ferroelectric lead titanate epitaxial thin films, for both artificial and intrinsic domains at room temperature. Furthermore, we show that variations in the domain density - detected both optically and via local piezoresponse and then quantified by radial autocorrelation analysis - can give us insight into the underlying defect potential present in these materials.

AB - Ferroelectrics are technologically important, with wide application in micromechanical systems, nonlinear optics, and information storage. Recent discoveries of exotic polarization textures in these materials, which can strongly influence their properties, have brought to the forefront questions about the nature of their domain walls: long believed to be primarily Ising, with locally null polarization. Here, combining three complementary techniques - second-harmonic generation microscopy, piezoresponse force microscopy, and transmission electron microscopy - to cover all the relevant length scales, we reveal the Néel character (non-Ising polarization oriented perpendicular to the wall) of 180° domain walls in c-phase tetragonal ferroelectric lead titanate epitaxial thin films, for both artificial and intrinsic domains at room temperature. Furthermore, we show that variations in the domain density - detected both optically and via local piezoresponse and then quantified by radial autocorrelation analysis - can give us insight into the underlying defect potential present in these materials.

U2 - 10.1103/PhysRevB.106.L241404

DO - 10.1103/PhysRevB.106.L241404

M3 - Letter

SN - 2469-9950

VL - 106

JO - Physical Review B

JF - Physical Review B

IS - 24

M1 - L241404

ER -

Non-Ising domain walls in c-phase ferroelectric lead titanate thin films

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Electon Microscopy: Electon Microscopy for the characterisation and manipulation of advanced function materials and their interfaces at the nanoscale

CRITICAT Equipment Account: CRITICAT Equipment Fund

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Non-Ising domain walls in c-phase ferroelectric lead titanate thin films

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