Unraveling the origin and mechanism of nano-filament formation in polycrystalline SrTiO3 resistive switching memories
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kwon, Deok-Hwang | - |
dc.contributor.author | Lee, Shinbuhm | - |
dc.contributor.author | Kang, Chan Soon | - |
dc.contributor.author | Choi, Yong Seok | - |
dc.contributor.author | Kang, Sungjin | - |
dc.contributor.author | Cho, Hae Lim | - |
dc.contributor.author | Sohn, Woonbae | - |
dc.contributor.author | Jo, Janghyun | - |
dc.contributor.author | Lee, Seung Yong | - |
dc.contributor.author | Oh, Kyu Hwan | - |
dc.contributor.author | Noh, Toe Won | - |
dc.contributor.author | De Souza, Roger A. | - |
dc.contributor.author | Martin, Manfred | - |
dc.contributor.author | Kim, Miyoung | - |
dc.date.accessioned | 2021-08-02T11:27:30Z | - |
dc.date.available | 2021-08-02T11:27:30Z | - |
dc.date.created | 2021-05-14 | - |
dc.date.issued | 2019-07 | - |
dc.identifier.issn | 0935-9648 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/13317 | - |
dc.description.abstract | Three central themes in the study of the phenomenon of resistive switching are the nature of the conducting phase, why it forms, and how it forms. In this study, the answers to all three questions are provided by performing switching experiments in situ in a transmission electron microscope on thin films of the model system polycrystalline SrTiO3. On the basis of high-resolution transmission electron microscopy, electron-energy-loss spectroscopy and in situ current-voltage measurements, the conducting phase is identified to be SrTi11O20. This phase is only observed at specific grain boundaries, and a Ruddlesden-Popper phase, Sr3Ti2O7, is typically observed adjacent to the conducting phase. These results allow not only the proposal that filament formation in this system has a thermodynamic origin-it is driven by electrochemical polarization and the local oxygen activity in the film decreasing below a critical value-but also the deduction of a phase diagram for strongly reduced SrTiO3. Furthermore, why many conducting filaments are nucleated at one electrode but only one filament wins the race to the opposite electrode is also explained. The work thus provides detailed insights into the origin and mechanisms of filament generation and rupture. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Unraveling the origin and mechanism of nano-filament formation in polycrystalline SrTiO3 resistive switching memories | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Seung Yong | - |
dc.identifier.doi | 10.1002/adma.201901322 | - |
dc.identifier.scopusid | 2-s2.0-85066105224 | - |
dc.identifier.wosid | 000477972300009 | - |
dc.identifier.bibliographicCitation | ADVANCED MATERIALS, v.31, no.28, pp.1 - 12 | - |
dc.relation.isPartOf | ADVANCED MATERIALS | - |
dc.citation.title | ADVANCED MATERIALS | - |
dc.citation.volume | 31 | - |
dc.citation.number | 28 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 12 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | STRONTIUM-TITANATE | - |
dc.subject.keywordPlus | OXYGEN DIFFUSION | - |
dc.subject.keywordPlus | DEFECT CHEMISTRY | - |
dc.subject.keywordPlus | LOW-TEMPERATURE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | LANTHANUM | - |
dc.subject.keywordPlus | PROFILES | - |
dc.subject.keywordPlus | MODEL | - |
dc.subject.keywordPlus | STATE | - |
dc.subject.keywordAuthor | memristors | - |
dc.subject.keywordAuthor | nanofilaments | - |
dc.subject.keywordAuthor | resistive switching | - |
dc.subject.keywordAuthor | transmission electron microscopy (TEM) | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/adma.201901322 | - |
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