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周期结构中声学波的色散关系_数学专业毕业论文

发布时间:2015-01-06 来源:人大经济论坛
周期结构中声学波的色散关系_数学专业毕业论文 周期结构中声学波的色散关系 摘要:本文详细讨论了1些周期结构的色散关系。首先,根据牛顿力学定律讨论了1维原子和2维原子的色散关系,接着根据固体理论讨论了A-B型周期结构和含有缺陷层的A-B型周期结构中声学波的色散关系。 关键词:超晶格;格波;声学声子;色散关系;周期结构; 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;
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