INTERPRETATION OF THE BAND-STRUCTURE RESULTS FOR ELASTIC AND ACOUSTIC-WAVES BY ANALOGY WITH THE LCAO APPROACH

被引：76

作者：

KAFESAKI, M ^{[1
]}

ECONOMOU, EN ^{[1
]}

机构：

[1] UNIV CRETE, DEPT PHYS, CRETE, GREECE

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.52.13317

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The band-structure results for elastic and acoustic waves propagating in a composite (consisting of periodically placed spheres in a host material) are analyzed by employing the frequency dependence of the scattering cross section from a single sphere. Two limiting modes of propagation can be visualized. According to the first the wave propagates mainly through the host material; according to the second the wave hops coherently from a sphere to its neighbors using the resonances in the single-sphere scattering cross section. This second mode is the analog of the linear combination of atomic orbitals in electronic propagation, with the atomic orbitals replaced by the resonances.

引用

页码：13317 / 13331

页数：15

共 37 条

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[Anonymous], 1986, THEORY ELASTICITY, DOI [DOI 10.1016/C2009-0-25521-8, 10.1016/C2009-0-25521-8]

[2]

[Anonymous], 1995, PHOTONIC CRYSTALS

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