On the heterogeneous character of the heartbeat instability in complex (dusty) plasmas
arXiv:1206.5968 · doi:10.1063/1.4757213
Abstract
A hypothesis on the physical mechanism generating the heartbeat instability in complex (dusty) plasmas is presented. It is suggested that the instability occurs due to the periodically repeated critical transformation on the boundary between the microparticle-free area (void) and the complex plasma. The critical transformation is supposed to be analogous to the formation of the sheath in the vicinity of an electrode. The origin of the transformation is the loss of the electrons and ions on microparticles surrounding the void. We have shown that this hypothesis is consistent with the experimentally measured stability parameter range, with the evolution of the plasma glow intensity and microparticle dynamics during the instability, as well as with the observed excitation of the heartbeat instability by an intensity-modulated laser beam, tuned to the atomic transition of a working gas.
References in corpus (1)
Cited by in corpus (4)
- Instability onset and scaling laws of an autooscillating turbulent flow in a complex plasma
- Capacitively-coupled rf discharge with a large amount of microparticles: spatiotemporal emission pattern and microparticle arrangement
- Dim and bright void regimes in capacitively-coupled RF complex plasmas
- Heartbeat instability as auto-oscillation between dim and bright void regimes