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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 748 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 743 | - |
dc.citation.title | NATURE PHYSICS | - |
dc.citation.volume | 2 | - |
dc.contributor.author | Beatus, Tsevi | - |
dc.contributor.author | Tlusty, Tsvi | - |
dc.contributor.author | Bar-Ziv, Roy | - |
dc.date.accessioned | 2023-12-22T09:40:11Z | - |
dc.date.available | 2023-12-22T09:40:11Z | - |
dc.date.created | 2020-02-20 | - |
dc.date.issued | 2006-11 | - |
dc.description.abstract | The development of a general theoretical framework for describing the behaviour of a crystal driven far from equilibrium has proved difficult(1). Microfluidic crystals, formed by the introduction of droplets of immiscible fluid into a liquid-filled channel, provide a convenient means to explore and develop models to describe non-equilibrium dynamics(2-11). Owing to the fact that these systems operate at low Reynolds number (Re), in which viscous dissipation of energy dominates inertial effects, vibrations are expected to be over-damped and contribute little to their dynamics(12-14). Against such expectations, we report the emergence of collective normal vibrational modes (equivalent to acoustic 'phonons') in a one-dimensional microfluidic crystal of water-in-oil droplets at Re similar to 10(-4). These phonons propagate at an ultra-low sound velocity of similar to 100 mu ms(-1) and frequencies of a few hertz, exhibit unusual dispersion relations markedly different to those of harmonic crystals, and give rise to a variety of crystal instabilities that could have implications for the design of commercial microfluidic systems. First-principles theory shows that these phonons are an outcome of the symmetry-breaking flow field that induces long-range inter-droplet interactions, similar in nature to those observed in many other systems including dusty plasma crystals(15,16), vortices in superconductors(17,18), active membranes(19) and nucleoprotein. laments(20). | - |
dc.identifier.bibliographicCitation | NATURE PHYSICS, v.2, no.11, pp.743 - 748 | - |
dc.identifier.doi | 10.1038/nphys432 | - |
dc.identifier.issn | 1745-2473 | - |
dc.identifier.scopusid | 2-s2.0-33750612250 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/31204 | - |
dc.identifier.url | https://www.nature.com/articles/nphys432 | - |
dc.identifier.wosid | 000242477600011 | - |
dc.language | 영어 | - |
dc.publisher | NATURE PUBLISHING GROUP | - |
dc.title | Phonons in a one-dimensional microfluidic crystal | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Physics, Multidisciplinary | - |
dc.relation.journalResearchArea | Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | TRAVELING-WAVES | - |
dc.subject.keywordPlus | DYNAMICS | - |
dc.subject.keywordPlus | REYNOLDS | - |
dc.subject.keywordPlus | DEVICE | - |
dc.subject.keywordPlus | FLOW | - |
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