Dispersion relation for two-dimensional simple cubic lattices

作者:Tian Dou xiang; Wang Xiao yun; Wang Cang long; Duan Wen shan*
来源:Frontiers of Physics in China, 2008, 3(2): 159-164.
DOI:10.1007/s11467-008-0016-0

摘要

The linear wave equation for the simple cubic lattice is given in this paper. The dispersion relations of both longitudinal and transverse waves are given analytically for the acoustic mode and the optical mode, respectively.