Unveiling the Nanoscale Dielectric Gap and Its Influence on Ferroelectric Polarization Switching in Scanning Probe Microscopy

Cited 2 time in webofscience Cited 0 time in scopus
  • Hit : 78
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorEOM, SEONGMUNko
dc.contributor.authorKavle, Pravinko
dc.contributor.authorKang, Deokyoungko
dc.contributor.authorKim, Yeon-gyuko
dc.contributor.authorMartin, Lane W.ko
dc.contributor.authorHONG, DANIEL SEUNGBUMko
dc.date.accessioned2024-09-06T11:00:08Z-
dc.date.available2024-09-06T11:00:08Z-
dc.date.created2024-09-06-
dc.date.created2024-09-06-
dc.date.created2024-09-06-
dc.date.created2024-09-06-
dc.date.issued2024-09-
dc.identifier.citationAdvanced Functional Materials-
dc.identifier.issn1616-301X-
dc.identifier.urihttp://hdl.handle.net/10203/322820-
dc.description.abstract<jats:title>Abstract</jats:title><jats:p>The dielectric gap between the scanning probe microscopy (SPM) tip and the surface of a ferroelectric using conductive atomic force microscopy and piezoresponse force microscopy (PFM) is investigated. While the gap functions as a dielectric layer, it also allows tunneling current to inject charges into the ferroelectric when a critical loading force between 10–20 µN is applied to a tip with a radius of 25 nm under a bias voltage of 0.5 V. It is observed that the permittivity of the dielectric gap determines the coercive voltage measured by the piezoresponse hysteresis loop. While such studies done in air often produce coercive voltages much larger than those studied for the same materials in capacitor‐based studies, the use of high permittivity media such as water (ɛ<jats:sub>r</jats:sub> = 79) or silicone oil (ɛ<jats:sub>r</jats:sub> = 2.1‐2.8) produces coercive fields that more closely match those measured in conventional capacitor‐based polarization hysteresis loop measurements. Furthermore, using water as a dielectric medium in PFM imaging enhances the accuracy in extracting the amplitude and phase data from periodically poled lithium niobate crystals. These findings provide insight into the nanoscale phenomena of polarization switching instigated by the SPM tip and provide a pathway to improved quantitative studies.</jats:p>-
dc.languageEnglish-
dc.publisherWiley-
dc.titleUnveiling the Nanoscale Dielectric Gap and Its Influence on Ferroelectric Polarization Switching in Scanning Probe Microscopy-
dc.typeArticle-
dc.identifier.wosid001301949400001-
dc.type.rimsART-
dc.citation.publicationnameAdvanced Functional Materials-
dc.identifier.doi10.1002/adfm.202406944-
dc.contributor.localauthorHONG, DANIEL SEUNGBUM-
dc.contributor.nonIdAuthorKavle, Pravin-
dc.contributor.nonIdAuthorKang, Deokyoung-
dc.contributor.nonIdAuthorMartin, Lane W.-
dc.type.journalArticleArticle; Early Access-
dc.subject.keywordAuthorcoercive voltage-
dc.subject.keywordAuthorconductive atomic force microscopy-
dc.subject.keywordAuthordielectric gap-
dc.subject.keywordAuthorferroelectric-
dc.subject.keywordAuthorpiezoresponse force microscopy-
dc.subject.keywordPlusFORCE MICROSCOPY-
dc.subject.keywordPlusDOMAIN-WALLS-
dc.subject.keywordPlusTHIN-FILMS-
dc.subject.keywordPlusBATIO3-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusENHANCEMENT-
dc.subject.keywordPlusDEPENDENCE-
dc.subject.keywordPlusDYNAMICS-
dc.subject.keywordPlusLAYER-
Appears in Collection
MS-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 2 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0