Phononic crystals with planar defects

Psarobas, IE; Stefanou, N; Modinos, A

dc.contributor.author	Psarobas, IE	en
dc.contributor.author	Stefanou, N	en
dc.contributor.author	Modinos, A	en
dc.date.accessioned	2014-03-01T01:15:47Z
dc.date.available	2014-03-01T01:15:47Z
dc.date.issued	2000	en
dc.identifier.issn	0163-1829	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13738
dc.subject	Elastic Waves	en
dc.subject.classification	Physics, Condensed Matter	en
dc.subject.other	BAND-GAPS	en
dc.subject.other	COMPOSITES	en
dc.title	Phononic crystals with planar defects	en
heal.type	journalArticle	en
heal.identifier.primary	10.1103/PhysRevB.62.5536	en
heal.identifier.secondary	http://dx.doi.org/10.1103/PhysRevB.62.5536	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	We study the effect of planar defects in phononic crystals of spherical scatterers. It is shown that a plane of impurity spheres introduces modes of vibration of the elastic field localized on this plane at frequencies within a frequency gag of a purl phononic crystal: these show up as sharp resonances in the transmittance of elastic waves Incident on a slab of the crystal. A periodic arrangement of impurity planes along a given direction creates narrow impurity bands with a width which depends on the position of these bands within the frequency eap of the pure crystal and on the separation between the impurity planes. We show how a slight deviation from periodicity (one impurity plane is different from the rest) reduces dramatically the transmittance of elastic waves incident on a slab of the crystal.	en
heal.publisher	AMERICAN PHYSICAL SOC	en
heal.journalName	PHYSICAL REVIEW B	en
dc.identifier.doi	10.1103/PhysRevB.62.5536	en
dc.identifier.isi	ISI:000089212900053	en
dc.identifier.volume	62	en
dc.identifier.issue	9	en
dc.identifier.spage	5536	en
dc.identifier.epage	5540	en