DC Field | Value | Language |
---|---|---|
dc.contributor.author | Suh, Ahram | ko |
dc.contributor.author | Gim, Min-Jun | ko |
dc.contributor.author | Beller, Daniel | ko |
dc.contributor.author | Yoon, Dong Ki | ko |
dc.date.accessioned | 2019-08-22T08:20:04Z | - |
dc.date.available | 2019-08-22T08:20:04Z | - |
dc.date.created | 2019-08-19 | - |
dc.date.issued | 2019-05 | - |
dc.identifier.citation | SOFT MATTER, v.15, no.29, pp.5835 - 5841 | - |
dc.identifier.issn | 1744-683X | - |
dc.identifier.uri | http://hdl.handle.net/10203/264902 | - |
dc.description.abstract | We study transformations of self-organised defect arrays at the nematic-smectic A liquid crystal phase transition, and show that these defect configurations are correlated, or "remembered", across the phase transition. A thin film of thermotropic liquid crystal is subjected to hybrid anchoring by an air interface and a water substrate, and viewed under polarised optical microscopy. Upon heating from smectic-A to nematic, a packing of focal conic domains melts into a dense array of boojums-nematic surface defects-which then coarsens by pair-annihilation. With the aid of Landau-de Gennes numerical modeling, we elucidate the topological and geometrical rules underlying this transformation. In the transition from nematic to smectic-A, we show that focal conic domain packings are organised over large scales in patterns that retain a geometric memory of the nematic boojum configuration, which can be recovered with remarkable fidelity. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Topological defects and geometric memory across the nematic-smectic A liquid crystal phase transition | - |
dc.type | Article | - |
dc.identifier.wosid | 000476909200022 | - |
dc.identifier.scopusid | 2-s2.0-85069786134 | - |
dc.type.rims | ART | - |
dc.citation.volume | 15 | - |
dc.citation.issue | 29 | - |
dc.citation.beginningpage | 5835 | - |
dc.citation.endingpage | 5841 | - |
dc.citation.publicationname | SOFT MATTER | - |
dc.identifier.doi | 10.1039/c9sm00781d | - |
dc.contributor.localauthor | Yoon, Dong Ki | - |
dc.contributor.nonIdAuthor | Beller, Daniel | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | POINT DISCLINATIONS | - |
dc.subject.keywordPlus | COLLOIDAL CRYSTALS | - |
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