论文信息 - Optical phonon modes confinement in quasiperiodic semiconductor superlattice

Optical phonon modes confinement in quasiperiodic semiconductor superlattice

The dispersion relation and localization profile of confined optical phonon modes propagating in quasiperiodic Fibonacci nitride semiconductor structures are analyzed through a transfer-matrix approach. This substitutional sequence is described in terms of a series of generations that obey peculiar recursion relations and/or inflation rules. We present a quantitative analysis of the localization and magnitude of the allowed band widths in the optical phonon spectra, as well as how they scale as a function of the number of generations of the Fibonacci sequence.

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