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Title: Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices

Abstract

The nanodomain pattern in ferroelectric/dielectric superlattices transforms to a uniform polarization state under above-bandgap optical excitation. X-ray scattering reveals a disappearance of domain diffuse scattering and an expansion of the lattice. Furthermore, the reappearance of the domain pattern occurs over a period of seconds at room temperature, suggesting a transformation mechanism in which charge carriers in long-lived trap states screen the depolarization field. A Landau-Ginzburg-Devonshire model predicts changes in lattice parameter and a critical carrier concentration for the transformation.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3];  [2];  [1]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Materials Science and Engineering
  2. Stony Brook Univ., NY (United States). Dept. of Physics and Astronomy
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source
Publication Date:
Research Org.:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1389728
Alternate Identifier(s):
OSTI ID: 1373430
Grant/Contract Number:  
FG02-04ER46147; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 119; Journal Issue: 5; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Ahn, Youngjun, Park, Joonkyu, Pateras, Anastasios, Rich, Matthew B., Zhang, Qingteng, Chen, Pice, Yusuf, Mohammed H., Wen, Haidan, Dawber, Matthew, and Evans, Paul G. Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices. United States: N. p., 2017. Web. doi:10.1103/PhysRevLett.119.057601.
Ahn, Youngjun, Park, Joonkyu, Pateras, Anastasios, Rich, Matthew B., Zhang, Qingteng, Chen, Pice, Yusuf, Mohammed H., Wen, Haidan, Dawber, Matthew, & Evans, Paul G. Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices. United States. doi:10.1103/PhysRevLett.119.057601.
Ahn, Youngjun, Park, Joonkyu, Pateras, Anastasios, Rich, Matthew B., Zhang, Qingteng, Chen, Pice, Yusuf, Mohammed H., Wen, Haidan, Dawber, Matthew, and Evans, Paul G. Mon . "Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices". United States. doi:10.1103/PhysRevLett.119.057601. https://www.osti.gov/servlets/purl/1389728.
@article{osti_1389728,
title = {Photoinduced Domain Pattern Transformation in Ferroelectric-Dielectric Superlattices},
author = {Ahn, Youngjun and Park, Joonkyu and Pateras, Anastasios and Rich, Matthew B. and Zhang, Qingteng and Chen, Pice and Yusuf, Mohammed H. and Wen, Haidan and Dawber, Matthew and Evans, Paul G.},
abstractNote = {The nanodomain pattern in ferroelectric/dielectric superlattices transforms to a uniform polarization state under above-bandgap optical excitation. X-ray scattering reveals a disappearance of domain diffuse scattering and an expansion of the lattice. Furthermore, the reappearance of the domain pattern occurs over a period of seconds at room temperature, suggesting a transformation mechanism in which charge carriers in long-lived trap states screen the depolarization field. A Landau-Ginzburg-Devonshire model predicts changes in lattice parameter and a critical carrier concentration for the transformation.},
doi = {10.1103/PhysRevLett.119.057601},
journal = {Physical Review Letters},
number = 5,
volume = 119,
place = {United States},
year = {Mon Jul 31 00:00:00 EDT 2017},
month = {Mon Jul 31 00:00:00 EDT 2017}
}

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