Impurity-induced local modes in one-dimensional dusty plasma chains

doi:10.1088/1674-1056/21/11/115201

中国物理B ›› 2012, Vol. 21 ›› Issue (11): 115201-115201.doi: 10.1088/1674-1056/21/11/115201

• PHYSICS OF GASES, PLASMAS, AND ELECTRIC DISCHARGES • 上一篇下一篇

Impurity-induced local modes in one-dimensional dusty plasma chains

任永超, 王欣上, 王晓钢

State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China

收稿日期:2012-03-22 修回日期:2012-05-31 出版日期:2012-10-01 发布日期:2012-10-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 40731056 and 10975012) and the President Fund for Undergraduate Research of Peking University, China.

Impurity-induced local modes in one-dimensional dusty plasma chains

Ren Yong-Chao (任永超), Wang Xin-Shang (王欣上), Wang Xiao-Gang (王晓钢 )

State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, China

Received:2012-03-22 Revised:2012-05-31 Online:2012-10-01 Published:2012-10-01
Contact: Wang Xiao-Gang E-mail:xgwang@pku.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 40731056 and 10975012) and the President Fund for Undergraduate Research of Peking University, China.

摘要/Abstract

摘要： 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.

关键词: impurity, local mode, dusty plasma

Abstract: 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.

Key words: impurity, local mode, dusty plasma

中图分类号: (Impurities in plasmas)

52.25.Vy

52.27.Lw (Dusty or complex plasmas; plasma crystals) 52.35.Lv (Other linear waves)

任永超, 王欣上, 王晓钢 . Impurity-induced local modes in one-dimensional dusty plasma chains[J]. 中国物理B, 2012, 21(11): 115201-115201.

Ren Yong-Chao (任永超), Wang Xin-Shang (王欣上), Wang Xiao-Gang (王晓钢 ). Impurity-induced local modes in one-dimensional dusty plasma chains[J]. Chin. Phys. B, 2012, 21(11): 115201-115201.

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Impurity-induced local modes in one-dimensional dusty plasma chains

Impurity-induced local modes in one-dimensional dusty plasma chains

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