Dirac electrons in a dodecagonal graphene quasicrystal
DC Field | Value | Language |
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dc.contributor.author | Ahn, Sung Joon | - |
dc.contributor.author | Moon, Pilkyung | - |
dc.contributor.author | Kim, Tae-Hoon | - |
dc.contributor.author | Kim, Hyun-Woo | - |
dc.contributor.author | Shin, Ha-Chul | - |
dc.contributor.author | Kim, Eun Hye | - |
dc.contributor.author | Cha, Hyun Woo | - |
dc.contributor.author | Kahng, Se-Jong | - |
dc.contributor.author | Kim, Philip | - |
dc.contributor.author | Koshino, Mikito | - |
dc.contributor.author | Son, Young-Woo | - |
dc.contributor.author | Yang, Cheol-Woong | - |
dc.contributor.author | Ahn, Joung Real | - |
dc.date.accessioned | 2021-09-02T07:36:32Z | - |
dc.date.available | 2021-09-02T07:36:32Z | - |
dc.date.created | 2021-06-16 | - |
dc.date.issued | 2018-08-24 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/73728 | - |
dc.description.abstract | Quantum states of quasiparticles in solids are dictated by symmetry. We have experimentally demonstrated quantum states of Dirac electrons in a two-dimensional quasicrystal without translational symmetry. A dodecagonal quasicrystalline order was realized by epitaxial growth of twisted bilayer graphene rotated exactly 30 degrees. We grew the graphene quasicrystal up to a millimeter scale on a silicon carbide surface while maintaining the single rotation angle over an entire sample and successfully isolated the quasicrystal from a substrate, demonstrating its structural and chemical stability under ambient conditions. Multiple Dirac cones replicated with the 12-fold rotational symmetry were observed in angle-resolved photoemission spectra, which revealed anomalous strong interlayer coupling with quasi-periodicity. Our study provides a way to explore physical properties of relativistic fermions with controllable quasicrystalline orders. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.subject | TWISTED BILAYER GRAPHENE | - |
dc.subject | BAND-STRUCTURE | - |
dc.subject | TRANSPORT | - |
dc.subject | LATTICE | - |
dc.subject | STATES | - |
dc.subject | SYMMETRY | - |
dc.subject | PHASE | - |
dc.subject | LAYER | - |
dc.title | Dirac electrons in a dodecagonal graphene quasicrystal | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kahng, Se-Jong | - |
dc.identifier.doi | 10.1126/science.aar8412 | - |
dc.identifier.scopusid | 2-s2.0-85049250590 | - |
dc.identifier.wosid | 000442828700040 | - |
dc.identifier.bibliographicCitation | SCIENCE, v.361, no.6404, pp.782 - + | - |
dc.relation.isPartOf | SCIENCE | - |
dc.citation.title | SCIENCE | - |
dc.citation.volume | 361 | - |
dc.citation.number | 6404 | - |
dc.citation.startPage | 782 | - |
dc.citation.endPage | + | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | TWISTED BILAYER GRAPHENE | - |
dc.subject.keywordPlus | BAND-STRUCTURE | - |
dc.subject.keywordPlus | TRANSPORT | - |
dc.subject.keywordPlus | LATTICE | - |
dc.subject.keywordPlus | STATES | - |
dc.subject.keywordPlus | SYMMETRY | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | LAYER | - |
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