Atomic-scale mechanisms of ferroelastic domain-wall-mediated ferroelectric switching. Gao, P., Britson, J., Jokisaari, J. R., Nelson, C. T., Baek, S., Wang, Y., Eom, C., Chen, L., & Pan, X. NATURE COMMUNICATIONS, NOV, 2013. doi abstract bibtex Polarization switching in ferroelectric thin films occurs via nucleation and growth of 180 degrees domains through a highly inhomogeneous process in which the kinetics are largely controlled by defects, interfaces and pre-existing domain walls. Here we present the first real-time, atomic-scale observations and phase-field simulations of domain switching dominated by pre-existing, but immobile, ferroelastic domains in Pb(Zr0.2Ti0.8)O-3 thin films. Our observations reveal a novel hindering effect, which occurs via the formation of a transient layer with a thickness of several unit cells at an otherwise charged interface between a ferroelastic domain and a switched domain. This transient layer possesses a low-magnitude polarization, with a dipole glass structure, resembling the dead layer. The present study provides an atomic level explanation of the hindering of ferroelectric domain motion by ferroelastic domains. Hindering can be overcome either by applying a higher bias or by removing the as-grown ferroelastic domains in fabricated nanostructures.
@article{ ISI:000328025000006,
Author = {Gao, Peng and Britson, Jason and Jokisaari, Jacob R. and Nelson,
Christopher T. and Baek, Seung-Hyub and Wang, Yiran and Eom, Chang-Beom
and Chen, Long-Qing and Pan, Xiaoqing},
Title = {{Atomic-scale mechanisms of ferroelastic domain-wall-mediated
ferroelectric switching}},
Journal = {{NATURE COMMUNICATIONS}},
Year = {{2013}},
Volume = {{4}},
Month = {{NOV}},
Abstract = {{Polarization switching in ferroelectric thin films occurs via nucleation
and growth of 180 degrees domains through a highly inhomogeneous process
in which the kinetics are largely controlled by defects, interfaces and
pre-existing domain walls. Here we present the first real-time,
atomic-scale observations and phase-field simulations of domain
switching dominated by pre-existing, but immobile, ferroelastic domains
in Pb(Zr0.2Ti0.8)O-3 thin films. Our observations reveal a novel
hindering effect, which occurs via the formation of a transient layer
with a thickness of several unit cells at an otherwise charged interface
between a ferroelastic domain and a switched domain. This transient
layer possesses a low-magnitude polarization, with a dipole glass
structure, resembling the dead layer. The present study provides an
atomic level explanation of the hindering of ferroelectric domain motion
by ferroelastic domains. Hindering can be overcome either by applying a
higher bias or by removing the as-grown ferroelastic domains in
fabricated nanostructures.}},
DOI = {{10.1038/ncomms3791}},
Article-Number = {{2791}},
ISSN = {{2041-1723}},
ResearcherID-Numbers = {{Gao, Peng/B-4675-2012
Chen, LongQing/I-7536-2012
Foundry, Molecular/G-9968-2014
Eom, Chang-Beom/I-5567-2014
Baek, Seung-Hyub/B-9189-2013
}},
ORCID-Numbers = {{Chen, LongQing/0000-0003-3359-3781
Baek, Seung-Hyub/0000-0002-3187-6596}},
Unique-ID = {{ISI:000328025000006}},
}
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Here we present the first real-time, atomic-scale observations and phase-field simulations of domain switching dominated by pre-existing, but immobile, ferroelastic domains in Pb(Zr0.2Ti0.8)O-3 thin films. Our observations reveal a novel hindering effect, which occurs via the formation of a transient layer with a thickness of several unit cells at an otherwise charged interface between a ferroelastic domain and a switched domain. This transient layer possesses a low-magnitude polarization, with a dipole glass structure, resembling the dead layer. The present study provides an atomic level explanation of the hindering of ferroelectric domain motion by ferroelastic domains. Hindering can be overcome either by applying a higher bias or by removing the as-grown ferroelastic domains in fabricated nanostructures.","doi":"10.1038/ncomms3791","article-number":"2791","issn":"2041-1723","researcherid-numbers":"Gao, Peng/B-4675-2012 Chen, LongQing/I-7536-2012 Foundry, Molecular/G-9968-2014 Eom, Chang-Beom/I-5567-2014 Baek, Seung-Hyub/B-9189-2013 ","orcid-numbers":"Chen, LongQing/0000-0003-3359-3781 Baek, Seung-Hyub/0000-0002-3187-6596","unique-id":"ISI:000328025000006","bibtex":"@article{ ISI:000328025000006,\nAuthor = {Gao, Peng and Britson, Jason and Jokisaari, Jacob R. and Nelson,\n Christopher T. and Baek, Seung-Hyub and Wang, Yiran and Eom, Chang-Beom\n and Chen, Long-Qing and Pan, Xiaoqing},\nTitle = {{Atomic-scale mechanisms of ferroelastic domain-wall-mediated\n ferroelectric switching}},\nJournal = {{NATURE COMMUNICATIONS}},\nYear = {{2013}},\nVolume = {{4}},\nMonth = {{NOV}},\nAbstract = {{Polarization switching in ferroelectric thin films occurs via nucleation\n and growth of 180 degrees domains through a highly inhomogeneous process\n in which the kinetics are largely controlled by defects, interfaces and\n pre-existing domain walls. Here we present the first real-time,\n atomic-scale observations and phase-field simulations of domain\n switching dominated by pre-existing, but immobile, ferroelastic domains\n in Pb(Zr0.2Ti0.8)O-3 thin films. Our observations reveal a novel\n hindering effect, which occurs via the formation of a transient layer\n with a thickness of several unit cells at an otherwise charged interface\n between a ferroelastic domain and a switched domain. This transient\n layer possesses a low-magnitude polarization, with a dipole glass\n structure, resembling the dead layer. The present study provides an\n atomic level explanation of the hindering of ferroelectric domain motion\n by ferroelastic domains. Hindering can be overcome either by applying a\n higher bias or by removing the as-grown ferroelastic domains in\n fabricated nanostructures.}},\nDOI = {{10.1038/ncomms3791}},\nArticle-Number = {{2791}},\nISSN = {{2041-1723}},\nResearcherID-Numbers = {{Gao, Peng/B-4675-2012\n Chen, LongQing/I-7536-2012\n Foundry, Molecular/G-9968-2014\n Eom, Chang-Beom/I-5567-2014\n Baek, Seung-Hyub/B-9189-2013\n }},\nORCID-Numbers = {{Chen, LongQing/0000-0003-3359-3781\n Baek, Seung-Hyub/0000-0002-3187-6596}},\nUnique-ID = {{ISI:000328025000006}},\n}\n\n","author_short":["Gao, P.","Britson, J.","Jokisaari, J. R.","Nelson, C. 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