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Enhancement of the anisotropic photocurrent in ferroelectric oxides by strain gradients

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dc.contributor.authorChu, K.-
dc.contributor.authorJang, B.-K.-
dc.contributor.authorJi Ho Sung-
dc.contributor.authorShin, Y.A.-
dc.contributor.authorLee, E.-S.-
dc.contributor.authorSong, K.-
dc.contributor.authorLee, J.H.-
dc.contributor.authorWoo, C.-S.-
dc.contributor.authorKim, S.J.-
dc.contributor.authorChoi, S.-Y.-
dc.contributor.authorKoo, T.Y.-
dc.contributor.authorKim, Y.-H.-
dc.contributor.authorOh, S.-H.-
dc.contributor.authorMoon-Ho Jo-
dc.contributor.authorYang, C.-H.-
dc.date.available2016-01-25T00:11:57Z-
dc.date.created2015-12-07-
dc.date.issued2015-11-
dc.identifier.issn1748-3387-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/2258-
dc.description.abstractThe phase separation of multiple competing structural/ferroelectric phases has attracted particular attention owing to its excellent electromechanical properties. Little is known, however, about the strain-gradient-induced electronic phenomena at the interface of competing structural phases. Here, we investigate the polymorphic phase interface of bismuth ferrites using spatially resolved photocurrent measurements, present the observation of a large enhancement of the anisotropic interfacial photocurrent by two orders of magnitude, and discuss the possible mechanism on the basis of the flexoelectric effect. Nanoscale characterizations of the photosensitive area through position-sensitive angle-resolved piezoresponse force microscopy and electron holography techniques, in conjunction with phase field simulation, reveal that regularly ordered dipole-charged domain walls emerge. These findings offer practical implications for complex oxide optoelectronics. © 2015 Macmillan Publishers Limited. All rights reserved-
dc.description.uri1-
dc.language영어-
dc.publisherNATURE PUBLISHING GROUP-
dc.titleEnhancement of the anisotropic photocurrent in ferroelectric oxides by strain gradients-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000364528300015-
dc.identifier.scopusid2-s2.0-84947035648-
dc.identifier.rimsid21798ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorJi Ho Sung-
dc.contributor.affiliatedAuthorMoon-Ho Jo-
dc.identifier.doi10.1038/nnano.2015.191-
dc.identifier.bibliographicCitationNATURE NANOTECHNOLOGY, v.10, no.11, pp.972 - 979-
dc.citation.titleNATURE NANOTECHNOLOGY-
dc.citation.volume10-
dc.citation.number11-
dc.citation.startPage972-
dc.citation.endPage979-
dc.date.scptcdate2018-10-01-
dc.description.wostc45-
dc.description.scptc43-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.subject.keywordPlusMORPHOTROPIC PHASE-BOUNDARY-
dc.subject.keywordPlusBIFEO3 THIN-FILMS-
dc.subject.keywordPlusPOLARIZATION-
dc.subject.keywordPlusCRYSTALS-
dc.subject.keywordPlusROTATION-
dc.subject.keywordPlusFIELD-
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > 1. Journal Papers (저널논문)
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