Rotation of Dust Structures in a Magnetic Field in a DC Glow Discharge

Abdirakhmanov, A. R.; Moldabekov, Zhandos A.; Kodanova, S. K.; Dosbolayev, M. K.; Рамазанов, Т. С.

doi:10.1109/tps.2019.2906051

Cited by 18 publications

(14 citation statements)

References 21 publications

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“…Essentially, B field could be of utmost importance for future research for dust shape control. Therefore, the presented results are relevant for accurate description of the complex plasma experiments in weak to moderate external magnetic field [15]. Furthermore, our results can also be useful to understand better other phenomena involving the motion of particles in cross fields, e.g.…”

Section: Discussionmentioning

confidence: 76%

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Transverse magnetic field influence on wakefield in complex plasmas

Sundar¹,

Moldabekov²

2019

Preprint

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We present the results of an investigation of the wakefield around a stationary charged grain in an external magnetic field with non-zero transverse component with respect to the ion flow direction. The impact of the orientation of magnetic field on the wake behavior is assessed. In contrast to previously reported significant suppression of the wake oscillations due to longitudinal magnetic field applied along flow, in the presence of transverse to flow magnetic field the wakefield exhibits a long range recurrent oscillations. Extensive investigation for a wide range of parameters reveal that in the sonic and supersonic regimes the wake has strong dependence on the direction of the magnetic field and exhibits sensitivity to even a meager deviation of magnetic field from the longitudinal orientation. The tool obtained with the study of impact of transverse component of magnetic field on the wake around grain in streaming ions can be used to potentially maneuver the grain-grain interaction to achieve controlled grain dynamics.

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Section: Discussionmentioning

confidence: 76%

“…One of the fundamental research problems complex plasma physicists have dealt with is to acquire the knowledge about controlled behavior of dusty plasma. This controlled behavior of grain-plasma dynamics has often been achieved by applying external electric [4,5,6,7,8] and magnetic fields [9,10,11,12,13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Transverse magnetic field influence on wakefield in complex plasmas

Sundar¹,

Moldabekov²

2019

Preprint

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“…To determine the electron temperature and concentration, as well as other plasma parameters, the VI characteristic of the probe was obtained at different values of the magnetic field (Figure 2). Detailed information of the probe and the method for determining the plasma parameters are described in [28]. As can be seen from the graph, a significant difference in probe VI characteristic does not appear at different magnetic fields.…”

Section: Figure 1-experimental Setup For Probe Diagnosticsmentioning

confidence: 99%

Langmuir probe and optical diagnostics of stratified glow discharge in a magnetic field

Abdirakhmanov

Ussenov

Dosbolayev

et al. 2019

Int. j. math. phys.

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The article presents the preliminary results of an experimental study of the characteristics of a DC stratified glow discharge plasma in an external magnetic field. Single Langmuir probe and emissive spectrometer are used as diagnostic tools for the estimation of various plasma parameters. The main plasma parameters, such as electron temperature, density and floating potential were determined from the voltage-current (VI) characteristics of the probe in the stratified glow discharge plasmas for different magnetic field values. Increasing the value of the magnetic field leads to an increase in the concentration of plasma particles and a decrease in the temperature of electrons. Also by the optical emission spectroscopic (OES) method it was found that the intensity of spectral lines of the stratified glow discharge increases with an increase value of magnetic field. A simple interpretation was made to explain our results according to the work of Bickerton&Engel [21].

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“…Dusty plasma, a plasma containing electrons, ions, and atomic and molecular neutrals as well as charged dust grains, has attracted much attention around the world in last three decades for its widespread existence in space, microelectronic processing, and plasma-experiment-laboratory. [1][2][3][4] Due to the higher mobility of electrons than that of ions, dust particles are more likely to capture electrons, which make dust particles negatively charged to thousands of elementary charges. [1] In laboratory plasma experiments, plastic particles or other artificial particles, [5] acting as dust grains, are injected into the discharge chamber and strong-coupled dusty plasma systems are then formed.…”

Section: Introductionmentioning

confidence: 99%

Reconsidering the formation of dust void in axial magnetic field

Wang

Sun

et al. 2022

Contributions to Plasma Physics

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We propose a nonlinear fluid model to describe the dust void formation in a magnetic field environment. It is found that the radius of the dust void keeps decreasing as the intensity of the magnetic field increases. Further research shows that the circular motion of ions affects the balance of electric field force and ion-drag force, which is the main reason for the change of dust voids. The Lorentz force of grains theoretically tends to increase the radius of the dust void, but the force is so small that it can be ignored.

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Rotation of Dust Structures in a Magnetic Field in a DC Glow Discharge

Cited by 18 publications

References 21 publications

Transverse magnetic field influence on wakefield in complex plasmas

Transverse magnetic field influence on wakefield in complex plasmas

Langmuir probe and optical diagnostics of stratified glow discharge in a magnetic field

Reconsidering the formation of dust void in axial magnetic field

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