Impurity-induced local modes in one-dimensional dusty plasma chains |
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| Authors: | Ren Yong-Chao Wang Xin-Shang and Wang Xiao-Gang |
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| Affiliation: | State Key Laboratory of Nuclear Physics and Technology,School of Physics,Peking University,Beijing 100871,China |
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| Abstract: | The effects of impurity on eigenmodes in one-dimensional dusty plasma lattices are studied.It is found that local modes can be excited besides lattice waves,due to the existence of an impurity particle.The dispersion relations of the modes are derived accordingly.Properties of the lattice and local modes are also analyzed and discussed,particularly for their symmetric features and conditions of the mode excitation. |
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| Keywords: | impurity local mode dusty plasma |
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