DC Field | Value | Language |
---|---|---|
dc.contributor.author | Sung, Ha-Jun | ko |
dc.contributor.author | Kim, Sunghyun | ko |
dc.contributor.author | Lee, In-Ho | ko |
dc.contributor.author | Chang, Kee Joo | ko |
dc.date.accessioned | 2017-04-17T07:26:21Z | - |
dc.date.available | 2017-04-17T07:26:21Z | - |
dc.date.created | 2017-04-10 | - |
dc.date.created | 2017-04-10 | - |
dc.date.issued | 2017-03 | - |
dc.identifier.citation | NPG ASIA MATERIALS, v.9, pp.e361 - e361 | - |
dc.identifier.issn | 1884-4049 | - |
dc.identifier.uri | http://hdl.handle.net/10203/223232 | - |
dc.description.abstract | Graphene is known as a two- dimensional Dirac semimetal, in which electron states are described by the Dirac equation of relativistic quantum mechanics. Three- dimensional analogs of graphene are characterized by Dirac points or lines in momentum space, which are protected by symmetry. Here, we report a novel 3D carbon allotrope belonging to a class of topological nodal line semimetals, discovered using an evolutionary structure search method. The new carbon phase in the monoclinic C2/m space group, termed m-C8, consists of five- membered rings with sp(3) bonding interconnected by sp(2)- bonded carbon networks. Enthalpy calculations reveal that m-C8 is more favorable than recently reported topological semimetallic carbon allotropes, and the dynamic stability of m-C8 is verified by phonon spectra and molecular dynamics simulations. Simulated X-ray diffraction patterns indicate that m-C8 could be one of the unidentified carbon phases observed in detonation shoot. The analysis of electronic properties indicates that m-C8 exhibits a nodal line protected by both inversion and time-reversal symmetries in the absence of spin-orbit coupling and the surface band connecting the projected nodal points. Our results may help design new carbon allotropes with exotic electronic properties. | - |
dc.language | English | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.subject | DIRAC SEMIMETAL | - |
dc.subject | PHASE | - |
dc.subject | GRAPHENE | - |
dc.subject | STATE | - |
dc.title | Semimetallic carbon allotrope with a topological nodal line in mixed sp(2)-sp(3) bonding networks | - |
dc.type | Article | - |
dc.identifier.wosid | 000397296800009 | - |
dc.identifier.scopusid | 2-s2.0-85026897027 | - |
dc.type.rims | ART | - |
dc.citation.volume | 9 | - |
dc.citation.beginningpage | e361 | - |
dc.citation.endingpage | e361 | - |
dc.citation.publicationname | NPG ASIA MATERIALS | - |
dc.identifier.doi | 10.1038/am.2017.26 | - |
dc.contributor.localauthor | Chang, Kee Joo | - |
dc.contributor.nonIdAuthor | Lee, In-Ho | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | DIRAC SEMIMETAL | - |
dc.subject.keywordPlus | PHASE | - |
dc.subject.keywordPlus | GRAPHENE | - |
dc.subject.keywordPlus | STATE | - |
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