Localization of phonons in a two-component superlattice with random-thickness layers

Article

关键词: ONE-DIMENSIONAL QUASICRYSTALS;    RANDOM-DIMER MODEL;    ELASTIC-WAVES;    PIEZOELECTRIC SUPERLATTICES;    DISORDERED-SYSTEMS;    RESONANT MODES;    SCALING THEORY;    CONDUCTANCE;    RESISTANCE;    INTERFACE;   

DOI  :  10.1103/PhysRevB.60.10114

来源: SCIE

【 摘 要 】

A two-component superlattice film of 2N layers is considered and a dimensionally quantized spectrum of phonons is found. The problem of localization of phonons in the superlattice with random-thickness layers is investigated. The Landauer resistance of the transport of phonons and the correlation length is calculated exactly. For short range disorder the numerical analyses shows that, at frequency omega=0, there is a delocalized state and the correlation length index v is equal to 2.

【 授权许可】

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