Suppression of metal-to-insulator transition using strong interfacial coupling at cubic and orthorhombic perovskite oxide heterointerfaces
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sohn, Woonbae | - |
dc.contributor.author | Kim, Taemin Ludvic | - |
dc.contributor.author | Lee, Tae Hyung | - |
dc.contributor.author | Yoon, Sangmoon | - |
dc.contributor.author | Kim, Chungsoo | - |
dc.contributor.author | Yoo, Jung-Woo | - |
dc.contributor.author | Roh, Kwang Chul | - |
dc.contributor.author | Kim, Miyoung | - |
dc.contributor.author | Jang, Ho Won | - |
dc.date.accessioned | 2022-07-14T03:40:07Z | - |
dc.date.available | 2022-07-14T03:40:07Z | - |
dc.date.created | 2022-07-14 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.issn | 2040-3364 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/84944 | - |
dc.description.abstract | A quasi-two-dimensional electron gas (2DEG) evolved at the LaAlO3 (LAO)/SrTiO3 (STO) interface has attracted significant attention, because the insertion of perovskite titanates can tune the 2DEG conductivity. However, this depends on the Ti-O-Ti bonding angle and structural symmetry. In this study, we controlled the octahedral tilt of the LAO/CaTiO3 (CTO) interface by heterostructuring it with CTO grown on STO substrates of various thicknesses. The 2DEG was maintained when the thickness of CTO was below the critical thickness of 5 unit cells (uc); however, it was suppressed when the CTO thickness was above the critical thickness. High-angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM) combined with integrated differential phase contrast (iDPC) STEM imaging was used to visualize the TiO6 octahedral tilt propagation and symmetry of the 5 uc and 24 uc CTO films. The symmetry of the 5 uc CTO film resembled that of the STO substrate, whereas the octahedral tilt propagated in the 24 uc CTO film due to the structural relaxation. These results show that the interface engineering of the octahedral tilt can enable or suppress the formation of the 2DEG in perovskite oxides. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.relation.isPartOf | NANOSCALE | - |
dc.title | Suppression of metal-to-insulator transition using strong interfacial coupling at cubic and orthorhombic perovskite oxide heterointerfaces | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000610368100017 | - |
dc.identifier.doi | 10.1039/d0nr07545k | - |
dc.identifier.bibliographicCitation | NANOSCALE, v.13, no.2, pp.708 - 715 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85099782241 | - |
dc.citation.endPage | 715 | - |
dc.citation.startPage | 708 | - |
dc.citation.title | NANOSCALE | - |
dc.citation.volume | 13 | - |
dc.citation.number | 2 | - |
dc.contributor.affiliatedAuthor | Yoon, Sangmoon | - |
dc.type.docType | Article | - |
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 | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
1342, Seongnam-daero, Sujeong-gu, Seongnam-si, Gyeonggi-do, Republic of Korea(13120)031-750-5114
COPYRIGHT 2020 Gachon University All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.