Surface Effects on Bandgaps of Transverse Waves Propagating in Two Dimensional Phononic Crystals with Nanosized Holes

Ni Zhen; Yue Sheng Wang

doi:10.4028/www.scientific.net/MSF.675-677.611

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HomeMaterials Science ForumMaterials Science Forum Vols. 675-677Surface Effects on Bandgaps of Transverse Waves...

Surface Effects on Bandgaps of Transverse Waves Propagating in Two Dimensional Phononic Crystals with Nanosized Holes

Abstract:

In this paper, a method based on the displacement-traction map is developed to calculate the bandgaps of transverse waves propagating in a 2D phononic crystal composed of nanosized circular holes in a square lattice. The Young-Laplace equation is employed to take into account of the surface effects of the nanosized holes. Detailed calculations are performed for the system with nanosized circular holes in an aluminum host with or without the surface effect. The result shows that all bands descend with the first bandgap becoming wider due to the existence of the surface effects.

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Materials Science Forum (Volumes 675-677)

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611-614

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.611

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Online since:

February 2011

Authors:

Ni Zhen, Yue Sheng Wang

Keywords:

Band Structure, Nanosized Holes, Phononic Crystal, Transverse Wave

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