Dust-Acoustic Waves in Strongly Coupled Dusty Plasmas Containing Variable-Charge Impurities

Chin. Phys. Lett.

2000, Vol. 17

Issue (12): 890-892 DOI:

Original Articles

Dust-Acoustic Waves in Strongly Coupled Dusty Plasmas Containing Variable-Charge Impurities

XIE Bai-Song^1,2,3;HE Kai-Fen^1,2,3;M. Y. Yu⁴

¹Key Laboratory in University for Beam Technology and Materials Modification, Beijing Normal University, Beijing 100875 ²Institute of Low Energy Nuclear Physics, Beijing Normal University, Beijing 100875 (mailing address) ³Beijing Radiation Center, Beijing 100875 ⁴Institut fur Theoretische Physik I, Ruhr-Universitat Bochum, 0-44780 Bochum, Germany

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XIE Bai-Song, HE Kai-Fen, M. Y. Yu 2000 Chin. Phys. Lett. 17 890-892

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Abstract A relatively self-consistent theory of dust-acoustic waves in the strongly coupled dusty plasmas containing variable-charge impurities is given. Relevant physical processes such as dust elastic relaxation and dust charge relaxation are taken into account. It is shown that the negative dispersion of dust-acoustic waves due to the strong correlation of dusts is enhanced in the presence of dust-neutral collisions.

Keywords: 52.25.Vy 52.25.Fp 52.25.Kn

Published: 01 December 2000

PACS:	52.25.Vy	(Impurities in plasmas)
	52.25.Fp
	52.25.Kn	(Thermodynamics of plasmas)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I12/0890

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