在超原胞近似下,利用平面波展开法数值计算了含线缺陷结构的二维磁振子晶体带结构及缺陷模的磁化强度场分布.研究结果表明,线缺陷结构的引入会在禁带中产生一个小范围的通带,即产生线缺陷模.该模式的存在可使自旋波沿着线缺陷结构的方向传播,利用此性质含线缺陷结构的二维磁振子晶体材料可作为自旋波导波器件的制作材料. In the supramolecular approximation, the two-dimensional magneto-optic crystal band structure and defect mode magnetization field distribution are calculated numerically using the plane wave expansion method.The results show that the introduction of the linear defect structure will be generated in the forbidden band A small passband, that is, a line defect mode, exists which allows the spin waves to propagate in the direction of the line defect structure. A two-dimensional magnetic dipole crystal material with a linear defect structure can be used as a spin waveguide Wave device production materials.