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dc.contributor.authorLai, Yun
dc.contributor.authorWu, Ying
dc.contributor.authorSheng, Ping
dc.contributor.authorZhang, Zhaoqing
dc.date.accessioned2015-08-03T09:04:58Z
dc.date.available2015-08-03T09:04:58Z
dc.date.issued2011-06-26
dc.identifier.issn14761122
dc.identifier.doi10.1038/nmat3043
dc.identifier.urihttp://hdl.handle.net/10754/561803
dc.description.abstractMetamaterials can exhibit electromagnetic and elastic characteristics beyond those found in nature. In this work, we present a design of elastic metamaterial that exhibits multiple resonances in its building blocks. Band structure calculations show two negative dispersion bands, of which one supports only compressional waves and thereby blurs the distinction between a fluid and a solid over a finite frequency regime, whereas the other displays super anisotropy-in which compressional waves and shear waves can propagate only along different directions. Such unusual characteristics, well explained by the effective medium theory, have no comparable analogue in conventional solids and may lead to novel applications. © 2011 Macmillan Publishers Limited. All rights reserved.
dc.description.sponsorshipWe thank Z. Hang and I. Tsukerman for useful discussions. This work was supported by Hong Kong RGC Grant No. 605008 and RGC Grant HKUST604207.
dc.publisherSpringer Nature
dc.titleHybrid elastic solids
dc.typeArticle
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
dc.contributor.departmentApplied Mathematics and Computational Science Program
dc.contributor.departmentWaves in Complex Media Research Group
dc.identifier.journalNature Materials
dc.contributor.institutionDepartment of Physics, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
dc.contributor.institutionDepartment of Physics, Soochow University, 1 Shizi Street, Suzhou 215006, China
kaust.personWu, Ying
dc.date.published-online2011-06-26
dc.date.published-print2011-08


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