Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films
Abstract
Nanoscale ferroelectrics are expected to exhibit various exotic domain configurations, such as the full flux-closure pattern that is well known in ferromagnetic materials. Here we observe not only the atomic morphology of the flux-closure quadrant but also a periodic array of flux closures in ferroelectric PbTiO3 films, mediated by tensile strain on a GdScO3 substrate. Using aberration-corrected scanning transmission electron microscopy, we directly visualize an alternating array of clockwise and counterclockwise flux closures, whose periodicity depends on the PbTiO3 film thickness. In the vicinity of the core, the strain is sufficient to rupture the lattice, with strain gradients up to 109 per meter. We found engineering strain at the nanoscale may facilitate the development of nanoscale ferroelectric devices.
- Authors:
-
- Chinese Academy of Sciences (CAS), Beijing (China). Shenyang National Lab. for Materials Science
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
- National Academy of Sciences of Ukraine (NASU), Kiev (Ukraine). Inst. of Physics
- National Academy of Sciences of Ukraine (NASU), Kiev (Ukraine). Inst. for Problems of Materials Sciences
- Chinese Academy of Sciences (CAS), Shenyang (China). Shenyang National Lab. for Materials Science
- Univ. of Tennessee, Knoxville, TN (United States). Dept. of Materials Science and Engineering; National Univ. of Singapore (Singapore). Dept. of Materials Science and Engineering
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1265480
- Grant/Contract Number:
- AC05-00OR22725; 51231007; 51171190; 2014CB921002; 2009CB623705
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Science
- Additional Journal Information:
- Journal Volume: 348; Journal Issue: 6234; Journal ID: ISSN 0036-8075
- Publisher:
- AAAS
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY
Citation Formats
Tang, Y. L., Zhu, Y. L, Ma, Xiuliang, Borisevich, Albina Y, Morozovska, A. N., Eliseev, Eugene, Wang, W. Y, Wang, Yujia, Xu, Y. B., Zhang, Z. D., and Pennycook, Stephen J. Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films. United States: N. p., 2015.
Web. doi:10.1126/science.1259869.
Tang, Y. L., Zhu, Y. L, Ma, Xiuliang, Borisevich, Albina Y, Morozovska, A. N., Eliseev, Eugene, Wang, W. Y, Wang, Yujia, Xu, Y. B., Zhang, Z. D., & Pennycook, Stephen J. Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films. United States. https://doi.org/10.1126/science.1259869
Tang, Y. L., Zhu, Y. L, Ma, Xiuliang, Borisevich, Albina Y, Morozovska, A. N., Eliseev, Eugene, Wang, W. Y, Wang, Yujia, Xu, Y. B., Zhang, Z. D., and Pennycook, Stephen J. Fri .
"Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films". United States. https://doi.org/10.1126/science.1259869. https://www.osti.gov/servlets/purl/1265480.
@article{osti_1265480,
title = {Observation of a periodic array of flux-closure quadrants in strained ferroelectric PbTiO3 films},
author = {Tang, Y. L. and Zhu, Y. L and Ma, Xiuliang and Borisevich, Albina Y and Morozovska, A. N. and Eliseev, Eugene and Wang, W. Y and Wang, Yujia and Xu, Y. B. and Zhang, Z. D. and Pennycook, Stephen J},
abstractNote = {Nanoscale ferroelectrics are expected to exhibit various exotic domain configurations, such as the full flux-closure pattern that is well known in ferromagnetic materials. Here we observe not only the atomic morphology of the flux-closure quadrant but also a periodic array of flux closures in ferroelectric PbTiO3 films, mediated by tensile strain on a GdScO3 substrate. Using aberration-corrected scanning transmission electron microscopy, we directly visualize an alternating array of clockwise and counterclockwise flux closures, whose periodicity depends on the PbTiO3 film thickness. In the vicinity of the core, the strain is sufficient to rupture the lattice, with strain gradients up to 109 per meter. We found engineering strain at the nanoscale may facilitate the development of nanoscale ferroelectric devices.},
doi = {10.1126/science.1259869},
journal = {Science},
number = 6234,
volume = 348,
place = {United States},
year = {Fri May 01 00:00:00 EDT 2015},
month = {Fri May 01 00:00:00 EDT 2015}
}
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Design and Manipulation of Ferroic Domains in Complex Oxide Heterostructures
text, January 2019
- Strkalj, Nives; Gradauskaite, Elzbieta; Nordlander, Johanna
- ETH Zurich