Acoustic quasimodes in two-dimensional dispersed random media

Xin Zhang, Zhengyou Liu, Fugen Wu, and Youyan Liu

Phys. Rev. E 73, 066604 – Published 2 June 2006

Abstract

Using the generalized coherent-potential-approximation approach, we present the dispersion relation of the two-dimensional dispersed random media. In the intermediate-frequency regime, two acoustic modes are found in colloidal suspensions including cylindrical plastic rod in water background. The scattering cross section offers a good explanation for the two modes and the observed frequency gaps in the excitation spectra.

Received 13 January 2006

DOI:https://doi.org/10.1103/PhysRevE.73.066604

Authors & Affiliations

Xin Zhang^1,2, Zhengyou Liu^1,*, Fugen Wu², and Youyan Liu³

¹Department of Physics, Wuhan University, Wuhan 430072, China
²Department of Applied Physics, Guangdong University of Technology, Guangzhou 510090, China
³Department of Applied Physics, South China University of Technology, Guangzhou 510640, China

^*Electronic address: zyliu@whu.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 73, Iss. 6 — June 2006

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review E

covering statistical, nonlinear, biological, and soft matter physics