不同边界条件的氯化钠结构晶格振动

Lattice Vibration of NaCl Structure in Different Boundary Conditions

研究ＮａＣｌ结构晶格的振动时，对于每一个维度都可采用自由边界或循环边界条件，也可采用Ｍｏｂｉｕｓ带状的拓扑边界条件．３种边界条件所给出的模花样和谱分布完全不同．

Topological boundary condition as well as free and periodic boundary conditions, were applied to the study of lattice vibration of NaCl structure in each dimension. The results show that the vibrational modes and distri- bution function are very different from each other.