| PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES |
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Comparison of Dust Lattice Waves in Three-Dimensional Cubic Configurations |
| B. Farokhi*, A. Hameditabar |
Department of Physics, Faculty of Science, Arak-University, 38156-8-8349, Arak, Iran
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| Cite this article: |
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B. Farokhi, A. Hameditabar 2012 Chin. Phys. Lett. 29 025204 |
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Abstract A three-dimensional (3D) dusty plasma crystalline with cubic configurations is considered. We calculate the interaction between particles up to distance √2a, implying the second−neighbor interactions for the simple cubic structure, the third-neighbor interactions for the body-centered cubic structure, and the forth-neighbor interactions the for face-centered cubic structure. Longitudinal and transverse dispersion relations are derived in arbitrary directions. The dispersion relations are studied in special directions, i.e. (1,0,0), (1,1,0)/√2, and (1,1,1)/√2. Study of dispersion relations with more neighbor interactions show that in some cases the results change physically.
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| Keywords:
52.27.Lw
52.35.Lv
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Received: 06 September 2011
Published: 11 March 2012
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| PACS: |
52.27.Lw
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(Dusty or complex plasmas; plasma crystals)
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52.35.Lv
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(Other linear waves)
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