Effect of plasma absorption on dust lattice waves in hexagonal dust crystals

He, Kang; Chen, Hui; Liu, Sanqiu

doi:10.1088/2058-6272/aaaadb

Cited by 6 publications

(3 citation statements)

References 34 publications

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“…Investigations on dust acoustic solitary waves in plasmas were carried out over more than several decades [356]. The par-ticle electric charges vary in time and space which leads to important qualitative differences between dusty plasmas [247] and usual multicomponent plasmas [30,31,42,161,237,250,357,358,359,360,361], because in addition to positive ions and electrons other components are present such as negative ions or dust particles. Dust acoustic waves in a charged dust component were investigated in a complex plasma at low-pressure, a model for which the analytical and numerical fluid models and kinetic approaches are treated extensively in [30,31,237].…”

Section: Regions Of Single Particle Confinementmentioning

confidence: 99%

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

Mihalcea¹,

Филинов²,

Syrovatka³

et al. 2019

Preprint

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Charged (nano)particles confined in electrodynamic traps can evolve into strongly correlated Coulomb systems, which are the subject of current investigation. Exciting physical phenomena associated to Coulomb systems have been reported such as autowave generation, phase transitions, system self-locking at the ends of the linear Paul trap, self-organization in layers, or pattern formation and scaling. The dynamics of ordered structures consisting of highly nonideal similarly charged nanoparticles, with coupling parameter of the order Γ = 10 8 is investigated. This approach enables us to study the interaction of nanoparticle structures in presence and in absence of the neutralizing plasma background, as well as to investigate various types of phenomena and physical forces these structures experience. Applications of electrodynamic levitation for mass spectrometry, including containment and study of single aerosols and nanoparticles are reviewed, with an emphasis on state of the art experiments and techniques, as well as future trends. Late experimental data suggest that inelastic scattering can be successfully applied to the detection of biological particles such as pollen, bacteria, aerosols, traces of explosives or synthetic polymers.

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Section: Regions Of Single Particle Confinementmentioning

confidence: 99%

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

Mihalcea¹,

Филинов²,

Syrovatka³

et al. 2019

Preprint

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“…The PF devices belong to the family of dynamic noncylindrical Z-pinch. If in this device deuterium is used as gases then DD fusion reaction takes place [23][24][25][26][27].…”

Section: Nuclear Fusion Devicesmentioning

confidence: 99%

Wave Spectra in Dusty Plasmas of Nuclear Fusion Devices

Shahzad¹,

Shakoori²,

He³

2020

Fusion Energy

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Wave's spectra are investigated through an equilibrium molecular dynamic (EMD) simulation of three-dimensional (3D) strongly-coupled complex-dusty plasmas (SCCDPs). In this chapter, we have analyzed the correlation functions over a wide range of plasma parameters of Γ (1, 100) and of κ (4.5, 5.5) along with a higher wave's numbers of k (1, 4). In EMD simulations, we have examined the propagation modes of wave in the longitudinal C L (k, t) and transverse C T (k, t) current direction at higher screening (κ). We have also analyzed the wave's spectra in different regimes of plasma states of SCCDPs. A new simulation shows that the longitudinal (C L) and transverse (C T) waves in SCCDPs are damped for low values of Γ. However, these damping affects decrease comparatively with an increasing Γ. Outcomes show that amplitude and frequency modes of the C L and C T depend on κ, Γ, k and probably on a number of particles (N). The results obtained from EMD are in reasonable agreement with earlier known theoretical and experimental data. It has been shown that the present EMD method is the best tool for computing C L and C T in the SCCDPs over a suitable range of plasma parameters.

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“…Previously, most research works focused on lattice dispersion and nonlinear structure in a dust lattice, and adopted the classical Debye-Hückel (Yukawa) potential or a potential of mutual attraction in addition to the Debye-Hückel potential. However, the interactions between particles are affected by other factors besides the Debye-Hückel potential, such as the plasma absorption effect on the dust particle, [17][18][19] "ion shadowing" interaction caused by constant plasma absorption, 20) ionization and recombination of electrons and ions, 21) "ion wake" due to ion flow in the sheath, 22) corrected shielding potential and so on. 23,24) Nosenko et al studied the parameter excitation process of dust lattice waves, and pointed out that the deviation of simulation results and experimental results may be because the dust particles interaction is not strictly Yukawa potential.…”

Section: Introductionmentioning

confidence: 99%

The nonlinear longitudinal lattice waves in a one-dimensional dusty chain with the plasma absorption effect

Tian

Chen

Liu

2019

Jpn. J. Appl. Phys.

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The nonlinear longitudinal dust lattice wave of a one-dimensional dust chain under the influence of the plasma absorption effect was investigated. A modified KdV-Burgers’ equation with the plasma absorption effect is derived under the continuum limit by the reductive perturbation method. Based on solutions of the Burgers’ equation, the effects of dynamic damping, absorption coefficient, characteristic length and shielding parameter on the shock structure are investigated. It is found that shock wave polarity is determined by hydrodynamical damping. Furthermore, as the electron-to-ion temperature ratio increases, shock amplitude increases correspondingly, but its width remains basically unchanged. Therefore, the shock structure of nonlinear longitudinal dust lattice wave with plasma absorption potential is different from the one under the conventional Debye–Hückel potential.

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Effect of plasma absorption on dust lattice waves in hexagonal dust crystals

Cited by 6 publications

References 34 publications

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

The physics and applications of strongly coupled plasmas levitated in electrodynamic traps

Wave Spectra in Dusty Plasmas of Nuclear Fusion Devices

The nonlinear longitudinal lattice waves in a one-dimensional dusty chain with the plasma absorption effect

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