Phononic crystals with planar defects

Details Phononic crystals with planar defects Phononic crystals with planar defects

2000-05-12

arxiv.org/abs/cond-mat/0005219v1

PRB 62,5536(2000)

Physics

Condensed Matter

Materials Science

6pages, 8 figures, submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.62.5536

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 gap of a pure 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 gap 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.

Affiliated with

Also associated with

No associations

Rating

Phononic crystals with planar defects does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Phononic crystals with planar defects, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phononic crystals with planar defects will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-436490