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Regensburg 2016 – wissenschaftliches Programm

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 13: Poster: Nanoparticles, Nanocrystals and Composites

CPP 13.5: Poster

Montag, 7. März 2016, 18:15–21:00, Poster B2

Numerical studies of acoustic metamaterial multilayers — •Takamichi Terao — Gifu university, Gifu, JAPAN

The vibrational properties of acoustic metamaterial multilayers, which are made of a periodic arrangement of clusters of mass and mass-in-mass microstructure, were numerically studied. The dispersion relations of one-dimensional multilayers and two-dimensional periodic structures with square lattices were clarified. It was confirmed that flat modes appear in a sonic band gap, and that the number of such in-gap modes can be controlled by changing the structure of a multilayer. The physical origin of the flat modes is also discussed.

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