Project supported by the National Natural Science Foundation of China (Grant No. 10864009);the Natural Science Foundation of Yunnan Province,China (Grant No. 2008CD109);the State Key Program of the National Natural Science of China (Grant No. 50734007)
Point defect states in two-dimensional phononic crystal of a hollow mercury cylinder in a water host are studied. An improved plane expansion method combined with the supercell technique is used to calculate the band ...