Abstract
Raman scattering experiments from acoustic phonons in Fibonacci metallic Nb-Cu superlattices were performed. The main features of the experimental results show that the Raman spectrum is dominated by triplet peaks which originate from the density of states of longitudinal-acoustic (LA) phonons in the subbands of phonon dispersion. The expected rich structure of gaps in the phonon spectrum has been labeled by strongest diffraction wave vector factor nτp.
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