physica status solidi (c)

Cover image for Vol. 13 Issue 7‐9

Editor: Stefan Hildebrandt (Editor-in-Chief)

Online ISSN: 1610-1642

Associated Title(s): physica status solidi (a), physica status solidi (b), physica status solidi (RRL) - Rapid Research Letters

6_09b/2009Back Cover: Phys. Status Solidi C 6/9

The Invited Article by Yan Pennec et al. on p. 2080 investigates theoretical phononic crystals based on the finite difference time domain approach. One challenge is to find structures that attenuate the propagation of sound over a sample whose thickness remains smaller than the wavelength in air. The authors consider a phononic crystal made up of a hard cylinder core covered by a multilayer of rubber and steel embedded periodically inside a water matrix. The cover picture shows the maps of the elastic field for one unit cell of the phononic crystal at frequencies in the audible range. They correspond to different localized vibrational states of the four rigid bodies linked together through the polymer shells at the origin of the sound attenuation.

Yan Pennec is assistant professor in the Materials and Nanostructure Department, iemn, CNRS UMR 8520. His research field is the propagation and the confinement of waves in phononic crystals and photonic nanostructures (© 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

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