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dc.contributor.author
Jin, Lei
dc.contributor.author
Xu, P.X.
dc.contributor.author
Zeng, Y.
dc.contributor.author
Lu, Lu
dc.contributor.author
Barthel, Juri
dc.contributor.author
Schulthess, Thomas
dc.contributor.author
Dunin-Borkowski, Rafal E.
dc.contributor.author
Wang, Hongwei
dc.contributor.author
Jia, Chunlin
dc.date.accessioned
2018-10-17T16:50:42Z
dc.date.available
2017-06-12T19:33:46Z
dc.date.available
2018-10-17T16:50:42Z
dc.date.issued
2017-01-19
dc.identifier.other
10.1038/srep39698
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/128073
dc.identifier.doi
10.3929/ethz-b-000128073
dc.description.abstract
Coupling between lattice and order parameters, such as polarization in ferroelectrics and/or polarity in polar structures, has a strong impact on surface relaxation and reconstruction. However, up to now, surface structures that involve the termination of both matrix polarization and polar atomic planes have received little attention, particularly on the atomic scale. Here, we study surface structures on a BiFeO3 thin film using atomic-resolution scanning transmission electron microscopy and spectroscopy. Two types of surface structure are found, depending on the polarization of the underlying ferroelectric domain. On domains that have an upward polarization component, a layer with an Aurivillius-Bi2O2-like structural unit is observed. Dramatic changes in local properties are measured directly below the surface layer. On domains that have a downward polarization component, no reconstructions are visible. Calculations based on ab initio density functional theory reproduce the results and are used to interpret the formation of the surface structures.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Nature Publishing Group
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Electronic properties and materials
en_US
dc.subject
Electronic devices
en_US
dc.title
Surface reconstructions and related local properties of a BiFeO3 thin film
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Scientific Reports
ethz.journal.volume
7
en_US
ethz.pages.start
39698
en_US
ethz.size
10 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.identifier.nebis
006751867
ethz.publication.place
London
en_US
ethz.publication.status
published
en_US
ethz.date.deposited
2017-06-12T19:34:51Z
ethz.source
ECIT
ethz.identifier.importid
imp59365539b864c35339
ethz.ecitpid
pub:190977
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2017-07-15T15:18:02Z
ethz.rosetta.lastUpdated
2019-01-02T14:49:51Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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