Phys. Rev. Lett. 71, 2022–2025 (1993)Acoustic band structure of periodic elastic compositesReceived 11 February 1993; published in the issue dated 27 September 1993 We present the first full band-structure calculations for periodic, elastic composites. For transverse polarization of the vibrations we obtain a ‘‘phononic’’ band gap which extends throughout the Brillouin zone. A complete acoustic gap or a low density of states should have important consequences for the suppression of zero-point motion and for the localization of phonons, and may lead to improvements in transducers and in the creation of a vibrationless environment. © 1993 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.71.2022
DOI:
10.1103/PhysRevLett.71.2022
PACS:
43.40.+s, 41.20.Jb, 42.25.Fx, 63.20.-e
See AlsoComment: M. M. Sigalas and E. N. Economou, Comment on “Acoustic Band Structure of Periodic Elastic Composites”, Phys. Rev. Lett. 75, 3580 (1995). Reply: M. S. Kushwaha, P. Halevi, L. Dobrzynski, and B. Djafari-Rouhani, Kushwaha et al. Reply, Phys. Rev. Lett. 75, 3581 (1995). |
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