Density waves at the interface of a binary complex plasma

Abstract

Density waves were studied in a phase-separated binary complex plasma under microgravity conditions. For the big particles, waves were self-excited by the two-stream instability, while for small particles, they were excited by heartbeat instability with the presence of reversed propagating pulses of a different frequency. By studying the dynamics of wave crests at the interface, we recognize a "collision zone" and a "merger zone" before and after the interface, respectively. The results provide a generic picture of wave-wave interaction at the interface between two "mediums".

References in corpus (8)

• Anomalous wave reflection from the interface of two strongly nonlinear granular media
• Experimental study of nonlinear dust acoustic solitary waves in a dusty plasma
• Dynamics of lane formation in driven binary complex plasmas
• The equilibrium intrinsic crystal-liquid interface of colloids
• Experimental observation of precursor solitons in a flowing complex plasma
• Anomalous transparency of water-air interface for low-frequency sound
• Slow dynamics in a quasi-two-dimensional binary complex plasma
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Cited by in corpus (4)

• Dust density waves in a dc flowing complex plasma with discharge polarity reversal
• Penetration of a supersonic particle at the interface in a binary complex plasma
• Spontaneous dust pulse formation in the afterglow of complex plasmas under microgravity conditions
• Propagation of terahertz waves in a dust acoustic wave