We get the lattice wave solution of monatomic chain under the free boundary condition.
在不使用循环边界条件情况下，求解出一维原子链的振动解析解。
The picture of the lattice vibration mode for one-dimensional monatomic chain induced by an interstitial impurity is studied mainly.
主要研究了一维单原子链中间隙式杂质引起的晶格振动图像，分析了杂质质量和恢复力系数对振动模的影响。
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