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arXiv · 1701.07210

Density waves at the interface of a binary complex plasma

Li Yang·Mierk Schwabe·Sergey Zhdanov·Hubertus M. Thomas·Andrey M Lipaev·Vladimir I Molotkov·Vladimir E Fortov·Jing Zhang·Cheng-Ran Du
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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".

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Li Yang, Mierk Schwabe, Sergey Zhdanov, Hubertus M. Thomas, Andrey M Lipaev, Vladimir I Molotkov, Vladimir E Fortov, Jing Zhang, Cheng-Ran Du. 2017-01-25. Density waves at the interface of a binary complex plasma. https://doi.org/10.1209/0295-5075/117/25001

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