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The dispersion relations of Acoustics phonon In periodic structure
Abstract: Some dispersion relations of acoustic in periodic structure are studied in detail in the article.Firstly, the dispersion relations of acoustic phonon dispersion relations are studied in Unidimensional and Two-dimensional atomic periodic structure by Newtonian mechanics. Secondly, dispersion relations of acoustic phonon in A- B periodic structure and the macro- surface dispersion relations of acoustic phonon in A- B periodic structure contains defact are studied by Solids theory .
Key word: Superlattice; Lattice vibration; Acoustic phonon; Dispersion relations; Periodic structure;