DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hoon | - |
dc.contributor.author | Slusar, Tetiana V. | - |
dc.contributor.author | Wulferding, Dirk | - |
dc.contributor.author | Yang, Ilkyu | - |
dc.contributor.author | Cho, Jin-Cheol | - |
dc.contributor.author | Lee, Minkyung | - |
dc.contributor.author | Choi, Hee Cheul | - |
dc.contributor.author | Jeong, Yoon Hee | - |
dc.contributor.author | Kim, Hyun-Tak | - |
dc.contributor.author | Kim, Jeehoon | - |
dc.date.accessioned | 2024-08-20T01:21:15Z | - |
dc.date.available | 2024-08-20T01:21:15Z | - |
dc.date.created | 2024-08-16 | - |
dc.date.issued | 2016-12 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/123942 | - |
dc.description.abstract | <jats:p>In VO2, the explicit origin of the insulator-to-metal transition is still disputable between Peierls and Mott insulators. Along with the controversy, its second monoclinic (M2) phase has received considerable attention due to the presence of electron correlation in undimerized vanadium ions. However, the origin of the M2 phase is still obscure. Here, we study a granular VO2 film using conductive atomic force microscopy and Raman scattering. Upon the structural transition from monoclinic to rutile, we observe directly an intermediate state showing the coexistence of monoclinic M1 and M2 phases. The conductivity near the grain boundary in this regime is six times larger than that of the grain core, producing a donut-like landscape. Our results reveal an intra-grain percolation process, indicating that VO2 with the M2 phase is a Mott insulator.</jats:p> | - |
dc.language | English | - |
dc.publisher | American Institute of Physics | - |
dc.relation.isPartOf | Applied Physics Letters | - |
dc.title | Direct observation of the M2 phase with its Mott transition in a VO2 film | - |
dc.type | Article | - |
dc.identifier.doi | 10.1063/1.4971848 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Applied Physics Letters, v.109, no.23 | - |
dc.identifier.wosid | 000390677700037 | - |
dc.citation.number | 23 | - |
dc.citation.title | Applied Physics Letters | - |
dc.citation.volume | 109 | - |
dc.contributor.affiliatedAuthor | Kim, Jeehoon | - |
dc.identifier.scopusid | 2-s2.0-85002906339 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.