Symmetry Dictated Grain Boundary State in a Two-Dimensional Topological Insulator
DC Field | Value | Language |
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dc.contributor.author | Kim, Hyo Won | - |
dc.contributor.author | Kang, Seoung-Hun | - |
dc.contributor.author | Kim, Hyun-Jung | - |
dc.contributor.author | Chae, Kisung | - |
dc.contributor.author | Cho, Suyeon | - |
dc.contributor.author | Ko, Wonhee | - |
dc.contributor.author | Jeon, Sangjun | - |
dc.contributor.author | Kang, Se Hwang | - |
dc.contributor.author | Yang, Heejun | - |
dc.contributor.author | Kim, Sung Wng | - |
dc.contributor.author | Park, Seongjun | - |
dc.contributor.author | Hwang, Sungwoo | - |
dc.contributor.author | Kwon, Young-Kyun | - |
dc.contributor.author | Son, Young-Woo | - |
dc.date.accessioned | 2022-01-13T02:41:32Z | - |
dc.date.available | 2022-01-13T02:41:32Z | - |
dc.date.issued | 2020-08 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.issn | 1530-6992 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/53424 | - |
dc.description.abstract | Grain boundaries (GBs) are ubiquitous in solids and have been of central importance in understanding the nature of polycrystals. In addition to their classical roles, topological insulators (TIs) offer a chance to realize GBs hosting distinct topological states that can be controlled by their crystal symmetries. However, such roles of crystalline symmetry in two-dimensional (2D) TIs have not been definitively measured yet. Here, we present the first direct evidence of a symmetry-enforced metallic state along a GB in 1T′-MoTe2, a prototypical 2D TI. Using scanning tunneling microscopy, we show a metallic state along a GB with nonsymmorphic lattice symmetry and its absence along another boundary with symmorphic symmetry. Our atomistic simulations demonstrate in-gap Weyl semimetallic states for the former, whereas they demonstrate gapped states for the latter, explaining our observation well. The observed metallic state, tightly linked to its crystal symmetry, can be used to create a stable conducting nanowire inside TIs. © 2020 American Chemical Society. | - |
dc.format.extent | 7 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | American Chemical Society | - |
dc.title | Symmetry Dictated Grain Boundary State in a Two-Dimensional Topological Insulator | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c01756 | - |
dc.identifier.bibliographicCitation | Nano Letters, v.20, no.8, pp 5837 - 5843 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 000562935200035 | - |
dc.identifier.scopusid | 2-s2.0-85088122398 | - |
dc.citation.endPage | 5843 | - |
dc.citation.number | 8 | - |
dc.citation.startPage | 5837 | - |
dc.citation.title | Nano Letters | - |
dc.citation.volume | 20 | - |
dc.type.docType | Article | - |
dc.publisher.location | 미국 | - |
dc.subject.keywordAuthor | density functional theory calculations | - |
dc.subject.keywordAuthor | Grain boundary | - |
dc.subject.keywordAuthor | nonsymmorphic symmetry | - |
dc.subject.keywordAuthor | scanning tunneling microscopy | - |
dc.subject.keywordAuthor | topological insulator | - |
dc.subject.keywordAuthor | Weyl semimetallic states | - |
dc.subject.keywordPlus | Electric insulators | - |
dc.subject.keywordPlus | Grain boundaries | - |
dc.subject.keywordPlus | Scanning tunneling microscopy | - |
dc.subject.keywordPlus | Topological insulators | - |
dc.subject.keywordPlus | Atomistic simulations | - |
dc.subject.keywordPlus | Conducting nanowires | - |
dc.subject.keywordPlus | Crystalline symmetry | - |
dc.subject.keywordPlus | Lattice symmetry | - |
dc.subject.keywordPlus | Metallic state | - |
dc.subject.keywordPlus | Observation wells | - |
dc.subject.keywordPlus | Topological state | - |
dc.subject.keywordPlus | Two Dimensional (2 D) | - |
dc.subject.keywordPlus | Crystal symmetry | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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