Low-frequency absolute gaps in the phonon spectrum of macrostructured elastic media

Stefanou, N; Sainidou, R; Modinos, A

dc.contributor.author	Stefanou, N	en
dc.contributor.author	Sainidou, R	en
dc.contributor.author	Modinos, A	en
dc.date.accessioned	2014-03-01T02:44:05Z
dc.date.available	2014-03-01T02:44:05Z
dc.date.issued	2006	en
dc.identifier.issn	1606-5131	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31668
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-33745386414&partnerID=40&md5=a21dcf35af88cb2dbc5bff5814541ca4	en
dc.subject.classification	Nanoscience & Nanotechnology	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.other	Composite materials	en
dc.subject.other	Elastic moduli	en
dc.subject.other	Elastic waves	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Spectrum analysis	en
dc.subject.other	Wave propagation	en
dc.subject.other	Complex-band-structure	en
dc.subject.other	Density-of-states diagrams	en
dc.subject.other	Layer-multiple-scattering method	en
dc.subject.other	Macrostructured elastic media	en
dc.subject.other	Phonon spectrum	en
dc.subject.other	Phonons	en
dc.title	Low-frequency absolute gaps in the phonon spectrum of macrostructured elastic media	en
heal.type	conferenceItem	en
heal.language	English	en
heal.publicationDate	2006	en
heal.abstract	The propagation of elastic waves in macroscopically periodic composites consisting of core-shell spherical scatterers in a homogeneous host medium is studied by means of numerical calculations using the layer-multiple-scattering method. By an appropriate choice of the constituent materials, these crystals exhibit wide absolute frequency gaps, over which no elastic wave can propagate in the composite medium, whatever the direction of its propagation. We analyze the detailed structure of transmission spectra of finite slabs of such crystals in conjunction with the corresponding complex-band-structure and density-of-states diagrams, and emphasize aspects of the underlying physics which have not been discussed previously. © 2006 Advanced Study Center Co. Ltd.	en
heal.publisher	INST PROBLEMS MECHANICAL ENGINEERING-RUSSIAN ACADEMY SCIENCES	en
heal.journalName	Reviews on Advanced Materials Science	en
dc.identifier.isi	ISI:000238039100006	en
dc.identifier.volume	12	en
dc.identifier.issue	1	en
dc.identifier.spage	46	en
dc.identifier.epage	50	en