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Article: Strain-mediated electric-field control of photoinduced demagnetization in La0.8 Ca0.2 MnO3 thin films

TitleStrain-mediated electric-field control of photoinduced demagnetization in La0.8 Ca0.2 MnO3 thin films
Authors
Guo, EJGao, JLu, HB
KeywordsConverse piezoelectric effects
Electric-field control
Epitaxially grown
Ferroelectric polarization
In-situ
Issue Date2011
PublisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/
Citation
Applied Physics Letters, 2011, v. 98 n. 8, article no. 081903 How to Cite?
DOI: http://dx.doi.org/10.1063/1.3556613
AbstractLa0.8 Ca0.2 MnO3 (LCMO) thin films have been epitaxially grown on ferroelectric 0.67Pb (Mg1/3 Nb 2/3) O3-0.33 PbTiO3 (PMN-PT) substrates. The substrate-induced strain effects on the transport and photoinduced demagnetization in LCMO films were investigated. The photoinduced resistances (PRs) of LCMO systematically changed versus temperature before and after ferroelectric-poling on PMN-PT, indicating that photoexcited extra carriers in LCMO may suppress the neighboring spin correlation due to the photoassisted hopping of anti-Jahn-Teller polarons. Moreover, a significant modulation on PR by electric fields applied across PMN-PT was observed. In situ x-ray diffraction indicates that the observed variations result from substrate-induced strain due to the ferroelectric polarization or converse piezoelectric effect. © 2011 American Institute of Physics.
Persistent Identifierhttp://hdl.handle.net/10722/139643
ISSN
0003-6951
2021 Impact Factor: 3.971
2020 SCImago Journal Rankings: 1.182
ISI Accession Number ID
WOS:000287764300021
Funding AgencyGrant Number
Research Grant Council of Hong KongHKU702409P
URC of University of Hong Kong
Funding Information:

This work has been supported by the Research Grant Council of Hong Kong (Project No. HKU702409P) and the URC of University of Hong Kong.

 

DC FieldValueLanguage
dc.contributor.authorGuo, EJen_US
dc.contributor.authorGao, Jen_US
dc.contributor.authorLu, HBen_US
dc.date.accessioned2011-09-23T05:52:51Z-
dc.date.available2011-09-23T05:52:51Z-
dc.date.issued2011en_US
dc.identifier.citationApplied Physics Letters, 2011, v. 98 n. 8, article no. 081903-
dc.identifier.issn0003-6951-
dc.identifier.urihttp://hdl.handle.net/10722/139643-
dc.description.abstractLa0.8 Ca0.2 MnO3 (LCMO) thin films have been epitaxially grown on ferroelectric 0.67Pb (Mg1/3 Nb 2/3) O3-0.33 PbTiO3 (PMN-PT) substrates. The substrate-induced strain effects on the transport and photoinduced demagnetization in LCMO films were investigated. The photoinduced resistances (PRs) of LCMO systematically changed versus temperature before and after ferroelectric-poling on PMN-PT, indicating that photoexcited extra carriers in LCMO may suppress the neighboring spin correlation due to the photoassisted hopping of anti-Jahn-Teller polarons. Moreover, a significant modulation on PR by electric fields applied across PMN-PT was observed. In situ x-ray diffraction indicates that the observed variations result from substrate-induced strain due to the ferroelectric polarization or converse piezoelectric effect. © 2011 American Institute of Physics.-
dc.languageengen_US
dc.publisherAmerican Institute of Physics. The Journal's web site is located at http://apl.aip.org/en_US
dc.relation.ispartofApplied Physics Lettersen_US
dc.rightsCopyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, 2011, v. 98 n. 8, article no. 081903 and may be found at https://doi.org/10.1063/1.3556613-
dc.subjectConverse piezoelectric effects-
dc.subjectElectric-field control-
dc.subjectEpitaxially grown-
dc.subjectFerroelectric polarization-
dc.subjectIn-situ-
dc.titleStrain-mediated electric-field control of photoinduced demagnetization in La0.8 Ca0.2 MnO3 thin filmsen_US
dc.typeArticleen_US
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0003-6951&volume=98&issue=8, article no. 081903&spage=&epage=&date=2011&atitle=Strain-mediated+electric-field+control+of+photoinduced+demagnetization+in+La0.8+Ca0.2+MnO3+thin+films-
dc.identifier.emailGuo, EJ: ejguo@hku.hken_US
dc.identifier.emailGao, J: jugao@hku.hken_US
dc.identifier.authorityGao, J=rp00699en_US
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1063/1.3556613-
dc.identifier.scopuseid_2-s2.0-79952082122-
dc.identifier.hkuros195576en_US
dc.identifier.volume98en_US
dc.identifier.issue8-
dc.identifier.spagearticle no. 081903-
dc.identifier.epagearticle no. 081903-
dc.identifier.eissn1077-3118-
dc.identifier.isiWOS:000287764300021-
dc.identifier.issnl0003-6951-

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