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Title: Strain effects on domain structures in ferroelectric thin films from phase‐field simulations

Abstract

Abstract Strain and applied external electric fields are known to influence domain evolution and associated ferroelectric responses in ferroelectric thin films. Here, phase‐field simulations are used to predict equilibrium domain structures and polarization‐field ( P ‐ E ) hysteresis loops of lead zirconate titanate (PZT) thin films under a series of mismatch strains, ranging from strongly tensile to strongly compressive. In particular, the evolution of domains and the P ‐ E curves under different applied strains reveal the mesoscale mechanism, the appearance of in‐plane polarization during domain switching, that is responsible for a relatively small coercive field and remnant polarization. A Landau energy distribution is analyzed to better understand the domain evolution under various strain conditions. The results provide guidance for choice of mismatched strains to yield the desired P ‐ E hysteresis loops and the domain structures.

Authors:
ORCiD logo [1];  [2];  [2];  [2]
  1. Department of Materials Science and Engineering The University of Florida Gainesville Florida, Department of Materials Science and Engineering The Pennsylvania State University University Park Pennsylvania
  2. Department of Materials Science and Engineering The Pennsylvania State University University Park Pennsylvania
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1435396
Resource Type:
Publisher's Accepted Manuscript
Journal Name:
Journal of the American Ceramic Society
Additional Journal Information:
Journal Name: Journal of the American Ceramic Society Journal Volume: 101 Journal Issue: 10; Journal ID: ISSN 0002-7820
Publisher:
Wiley-Blackwell
Country of Publication:
United States
Language:
English

Citation Formats

Lin, Fang‐Yin, Cheng, Xiaoxing, Chen, Long‐Qing, and Sinnott, Susan B. Strain effects on domain structures in ferroelectric thin films from phase‐field simulations. United States: N. p., 2018. Web. doi:10.1111/jace.15705.
Lin, Fang‐Yin, Cheng, Xiaoxing, Chen, Long‐Qing, & Sinnott, Susan B. Strain effects on domain structures in ferroelectric thin films from phase‐field simulations. United States. https://doi.org/10.1111/jace.15705
Lin, Fang‐Yin, Cheng, Xiaoxing, Chen, Long‐Qing, and Sinnott, Susan B. Mon . "Strain effects on domain structures in ferroelectric thin films from phase‐field simulations". United States. https://doi.org/10.1111/jace.15705.
@article{osti_1435396,
title = {Strain effects on domain structures in ferroelectric thin films from phase‐field simulations},
author = {Lin, Fang‐Yin and Cheng, Xiaoxing and Chen, Long‐Qing and Sinnott, Susan B.},
abstractNote = {Abstract Strain and applied external electric fields are known to influence domain evolution and associated ferroelectric responses in ferroelectric thin films. Here, phase‐field simulations are used to predict equilibrium domain structures and polarization‐field ( P ‐ E ) hysteresis loops of lead zirconate titanate (PZT) thin films under a series of mismatch strains, ranging from strongly tensile to strongly compressive. In particular, the evolution of domains and the P ‐ E curves under different applied strains reveal the mesoscale mechanism, the appearance of in‐plane polarization during domain switching, that is responsible for a relatively small coercive field and remnant polarization. A Landau energy distribution is analyzed to better understand the domain evolution under various strain conditions. The results provide guidance for choice of mismatched strains to yield the desired P ‐ E hysteresis loops and the domain structures.},
doi = {10.1111/jace.15705},
journal = {Journal of the American Ceramic Society},
number = 10,
volume = 101,
place = {United States},
year = {2018},
month = {4}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1111/jace.15705

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Cited by: 7 works
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