Acoustic band gaps and defect states in two-dimensional composite materials

作者：Wu, FG^*; Liu, YY

来源：Acta Physica Sinica, 2002, 51(7): 1434-1438.

• acoustic wave
• band gap
• defect state

Using the Plane-wave expansion method and supercell calculations, we have studied the acoustic wave band gaps and single defect states in two-dimensional periodic arrays of solid cylinders in water. The influence of the geometry of the cylinders, the filling fraction and the defects on the band gaps are investigated.

• 出版日期2002-7
• 单位华南理工大学; 广东工业大学