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Localized states of acoustic waves in three-dimensional periodic composites with point defects

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Listed:
  • Fugen Wu
  • Huilin Zhong
  • Shao Zhong
  • Zhengyou Liu
  • Youyan Liu

Abstract

Acoustic point defect states in the three-dimensional simple-cubic arrays of water spheres embedded in a mercury host are studied. Two kinds of defects are introduced, one is a sphere defect created by changing its radius, and another is a cubic defect obtained by replacing one of the spheres with a cube. The results show that a defect band appears in the band gap of the perfect crystals. The calculations show that the defect modes are localized around the defect. The influence of the filling fraction and the geometry of the defect on the defect modes are investigated in detail. Copyright Springer-Verlag Berlin/Heidelberg 2003

Suggested Citation

  • Fugen Wu & Huilin Zhong & Shao Zhong & Zhengyou Liu & Youyan Liu, 2003. "Localized states of acoustic waves in three-dimensional periodic composites with point defects," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 34(3), pages 265-268, August.
    • Handle: RePEc:spr:eurphb:v:34:y:2003:i:3:p:265-268
    DOI: 10.1140/epjb/e2003-00220-6
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