DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Myung Joon | ko |
dc.contributor.author | Oh, Il Kwon | ko |
dc.date.accessioned | 2021-06-14T06:50:44Z | - |
dc.date.available | 2021-06-14T06:50:44Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.created | 2021-06-14 | - |
dc.date.created | 2021-06-14 | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2021-04 | - |
dc.identifier.citation | TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A, v.45, no.4, pp.311 - 318 | - |
dc.identifier.issn | 1226-4873 | - |
dc.identifier.uri | http://hdl.handle.net/10203/285860 | - |
dc.description.abstract | Topological insulators have been studied extensively owing to its distinguished characteristics, which generates the edge state in which wave can propagate without backscattering. This work proposes a phononic crystal with distorted hexagonal holes, as an elastic topological insulator for in-plane wave based on the analogues of valley hall effect. First, the existence of a nontrivial valley topological phase on the phononic crystal is revealed by Bloch wave functions, Bloch frequencies at the valley, and numerically calculated valley Chem numbers, respectively. Then, a topologically protected edge state is generated on the boundary of two phononic crystals with different topological phases. Its topological protection property is confirmed on the band diagram by a supercell method utilizing the revealed valley topological phases. Finally, the nature of the edge state, which is topologically protected against sharp angles, is observed directly through a full field simulation. | - |
dc.language | Korean | - |
dc.publisher | KOREAN SOC MECHANICAL ENGINEERS | - |
dc.title | Elastic Topological Insulator via the Valley Hall Effect with Distorted Hexagonal Holes | - |
dc.title.alternative | 변형된 육각 구멍을 갖고 있는 밸리 홀 효과에 의한 탄성파 위상절연체 | - |
dc.type | Article | - |
dc.identifier.scopusid | 2-s2.0-85108661892 | - |
dc.type.rims | ART | - |
dc.citation.volume | 45 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 311 | - |
dc.citation.endingpage | 318 | - |
dc.citation.publicationname | TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS A | - |
dc.identifier.doi | 10.3795/KSME-A.2021.45.4.311 | - |
dc.identifier.kciid | ART002698784 | - |
dc.contributor.localauthor | Oh, Il Kwon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Elastic Wave | - |
dc.subject.keywordAuthor | Topological Insulator | - |
dc.subject.keywordAuthor | Waveguide | - |
dc.subject.keywordAuthor | Phononic Crystal | - |
dc.subject.keywordAuthor | Valley Hall Effect | - |
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