Nonlinear dust acoustic waves in magnetized two-ion-temperature dusty plasmas

Journal Article · Wed Dec 01 04:00:00 EST 2004 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.1814116· OSTI ID:20643951

Maimai, Lin; Wenshan, Duan ^[1]

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1. Department of Physics, Northwest Normal University, Lanzhou 730070 (China)

A Zakharov-Kuznetsov (ZK) equation, a modified ZK equation and a coupled ZK equation for small but finite amplitude dust acoustic waves in a magnetized two-ion-temperature dusty plasma with dust size distribution have been obtained in this paper. It seems that the soliton velocity for a dusty plasma with power law dust size distribution is larger than that of monosized dusty plasmas. The solitary waves with opposite polarity particles are investigated as well. It is found that rarefactive and compressive solitary waves exist in this system which depend on different conditions. On the other hand, the solitary wave is unstable at certain regions when the wave numbers of the transverse perturbations satisfies the conditions of 0<K<K{sub c} and 0<L<L{sub c}.

• OSTI ID: 20643951
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 12 Vol. 11; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
DUSTS
ION ACOUSTIC WAVES
ION TEMPERATURE
NONLINEAR PROBLEMS
PLASMA
SOLITONS