ACOUSTIC BAND-STRUCTURE OF PERIODIC ELASTIC COMPOSITES
ACOUSTIC BAND-STRUCTURE OF PERIODIC ELASTIC COMPOSITES
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DOI：
10.1103/physrevlett.71.2022
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发表时间：
1993-09-27
影响因子：
8.6
通讯作者：
DJAFARIROUHANI, B
中科院分区：
文献类型：
--
作者：
KUSHWAHA, MS;HALEVI, P;DJAFARIROUHANI, B
我们首次给出了周期弹性复合材料的全能带结构计算。对于振动的横向极化，我们得到了一个贯穿布里渊区的“声子”带隙。完整的声学间隙或低的状态密度应该对抑制零点运动和声子的局部化产生重要的影响，并可能导致换能器的改进和创造无振动的环境。
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.