ACOUSTIC-WAVES IN FINITE SUPERLATTICES

被引：21

作者：

ELBOUDOUTI, EH

DJAFARIROUHANI, B

机构：

[1] Equipe de Dynamique des Interfaces, Laboratoire de Dynamique et Structure des Matériaux Moléculaires, Université des Sciences et Technologies de Lille

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.49.4586

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Acoustic waves of shear horizontal polarization are studied in a finite superlattice (SL) deposited on a substrate with or without a surface cap layer, or sandwiched between two materials. Using a Green's function method, we have obtained closed-form expressions of local and total densities of states as a function of the frequency omega and the wave vector k(parallel-to) parallel to the layers. Due to the substrate-SL-capping layer interaction, different kinds of localized and resonant discrete modes are found and their properties are investigated.

引用

页码：4586 / 4592

页数：7

共 28 条

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