Lateral motion of a dust particle in magnetized plasma sheath

Davoudabadi, M.; Rovagnati, B.; Mashayek, Farzad

doi:10.1109/tps.2006.872163

Cited by 18 publications

(4 citation statements)

References 14 publications

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“…In figure 4(b) the size distribution for the spherical grains of radius a is obtained by solving the levitation equilibrium, equation (26), inside the sheath. The spatial derivative da/dz describes the stability of the grain inside the sheath.…”

Section: Numerical Resultsmentioning

confidence: 99%

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Plasma sheath in the presence of an oblique magnetic field

Pandey¹,

Samarian²,

Владимиров³

2008

Plasma Phys. Control. Fusion

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In this work the structure of a plasma sheath in the presence of an oblique magnetic field is investigated. The effect of plasma magnetization, plasma ionization and plasma-neutral collisions on the sheath is examined for different orientations of the magnetic field. It is shown that the width of the plasma sheath is dependent not only on the collision frequencies and the plasma magnetization but also on the angle of magnetic field orientation. The size of the sheath layer decreases with the increase in the angle between the magnetic field and wall. The grain inside the sheath acquires a more positive charge when the magnetic field is perpendicular to the wall in comparison with the parallel to the wall case. This results in the different levitational equilibrium of the grain. The implication of the results for measuring the sheath characteristics is discussed.

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Section: Numerical Resultsmentioning

confidence: 99%

“…The role of the magnetic field near the plasma wall has been examined in the recent past [25][26][27][28][29][30][31]. It is known that the magnetized collisional plasma-sheath characteristic is a sensitive function of the plasma parameters [31].…”

Section: Introductionmentioning

confidence: 99%

Plasma sheath in the presence of an oblique magnetic field

Pandey¹,

Samarian²,

Владимиров³

2008

Plasma Phys. Control. Fusion

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“…In the presence of dust grains, the ions and electrons in the plasma are attached to it, and the respective currents to the dust grains are governed by the OML (Orbital-Motion-Limited) theory. The equations that describe the ion and electron current to the dust grain are given by [15,43,44…”

Section: Theoretical Modelmentioning

confidence: 99%

Study of plasma sheath in the presence of dust particles in a magnetic mirror-like field configuration

et al. 2023

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The properties of a plasma sheath in the presence of dust grains and a magnetic mirror-like field configuration have been investigated in this study. All the plasma species viz. electrons, ions, and dust grains are described by fluid equations. The system of equations involved in the study is solved numerically using the Runge-Kutta fourth-order (RK4) method to explore the sheath properties. The results of the study suggest that in the presence of a magnetic mirror-like field configuration, the component of ion velocity perpendicular to the wall decreases near the wall, and consequently, the ion density increases. To the best of our knowledge, such observations has not been reported anywhere previously. This utterly different observation is due to the magnetic field configuration alone. Moreover, the ion-neutral collisions tend to reduce the effect of the magnetic field on the properties of the sheath. The study may be helpful to understand the interactions of plasma with the wall in different plasma-assisted industrial applications containing dust grains as contaminants. Besides, the study will play significant role in controlling the dynamics of positive ions and negatively charged dust grains in the sheath.

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“…Investigation of plasma sheath in presence of charged dust specie is one of the rapidly growing fields in fundamental plasma research [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] and technology [16][17][18][19][20][21][22][23]. It includes aspects of fundamental problems of plasma physics such as hydrodynamics, the kinetics of phase transitions, nonlinear physics, solid-state physics, and several industrial applications such as etching, sputtering, thin film deposition, and ion implantation [24][25][26][27][28][29][30], etc.…”

Section: Introductionmentioning

confidence: 99%

Study of magnetized multi-component plasma sheath containing charged dust particles in presence of oblique magnetic field: a fluid approach

Shaw¹,

Sanyasi²,

Kar³

2022

Phys. Scr.

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The dynamics of low temperature magnetized multi-component dusty plasma sheath structure has been investigated with finite ion temperature taking into account in presence of an oblique magnetic field using the multi-fluid model. The parametric changes inside the sheath are estimated in presence of charged dust species having nano-meter (nm) size range. In the presence of charged dust inside the sheath, the ions get accumulated near the sheath edge, and hence the ion density is decreased towards the wall. Further, with the increase in magnetic field strength, the peaking of ion densities near the sheath edge has been found to be intensified. The magnetic field orientation has also played a vital role in the bunching of the ions near the sheath edge and an increase in the magnetic field obliqueness has also contributed to intensifying the ion bunching. It has also been observed that the sheath potential is substantially changed in presence of charged dust species. In addition, we also investigated and presented the influence of dust species presence on the electron density inside the sheath. A qualitative explanation of all the phenomenon that occurs due to dust species has been presented in the manuscript.

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Lateral motion of a dust particle in magnetized plasma sheath

Cited by 18 publications

References 14 publications

Plasma sheath in the presence of an oblique magnetic field

Plasma sheath in the presence of an oblique magnetic field

Study of plasma sheath in the presence of dust particles in a magnetic mirror-like field configuration

Study of magnetized multi-component plasma sheath containing charged dust particles in presence of oblique magnetic field: a fluid approach

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