Cluster Rotation in an Unmagnetized Dusty Plasma

Huang, Feng; Liu, Yanhong; Chen, Zhaoyang; Long, Wang; Maofu, Ye

doi:10.1088/0256-307x/30/11/115201

Cited by 12 publications

(5 citation statements)

References 34 publications

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“…We are interested in long and narrow two-row crystals because they are suitable for FELs. [25] Narrow two-row crystals have strong transverse electric field that is essential for an electrostatic wiggler in FEL. On the other side, narrowing is equivalent to a small quantity of b, and small b leads to crystals with only one row.…”

Section: Crystals With Arbitrary Shapementioning

confidence: 99%

“…We restrict this study to the 2D case and assume that grain levitation occurs at a definite height above the lower electrode in the plasma sheath due to the balance between grain weight and sheath field. [25][26][27] In the horizontal direction, there are two forces: screened Coulomb force and confinement force. The first force is formulated in the next section and rigid walls are used as the second confinement force.…”

Section: Introductionmentioning

confidence: 99%

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Electric field in two-dimensional complex plasma crystal: Simulated lattices

Bahadory¹

2018

Chinese Phys. B

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We focus on molecular dynamics simulated two-dimensional complex plasma crystals. We use rigid walls as a confinement force and produce square and rectangular crystals. We report various types of two-row crystals. The narrow and long crystals are likely to be used as wigglers; therefore, we simulate such crystals. Also, we analyze the electric fields of simulated crystals. A bit change in lattice parameters can change the internal structures of crystals and their electric fields notably. These parameters are the number of grains, grains charge, length, and width of the crystal. With the help of electric fields, we show the details of crystal structures.

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Section: Crystals With Arbitrary Shapementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electric field in two-dimensional complex plasma crystal: Simulated lattices

Bahadory¹

2018

Chinese Phys. B

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“…The two-dimensional zigzag transitions have been studied in dusty plasmas confined by a biharmonic potential well created by a rectangular depression between four conducting bars placed on the RF powered electrode [32]. It has been shown that the properties of dust cluster rotation in a non-magnetized dusty plasma is highly dependent on the characteristics of the parabolic radial confinement potential [33,34].…”

Section: Introductionmentioning

confidence: 99%

Ring structural transitions in strongly coupled dusty plasmas

Dharodi¹,

Kostadinova²

2023

Preprint

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This paper presents a numerical study of ring structural transitions in strongly coupled dusty plasma confined in a ring-shaped (quartic) potential well with a central barrier, whose axis of symmetry is parallel to the gravitational attraction. It is observed that increasing the amplitude of the potential leads to a transition from a ring monolayer structure (rings of different diameters nested within the same plane) to a cylindrical shell structure (rings of similar diameter aligned in parallel planes). In the cylindrical shell state, the rings alignment in the vertical plane exhibits hexagonal symmetry. The ring transition is reversible, but exhibits hysteresis in the initial and final particle positions. As the critical conditions for the transitions are approached, the transitional structure states exhibit zigzag instabilities or asymmetries on the ring alignment. Furthermore, for a fixed amplitude of the quartic potential that results in a cylinder-shaped shell structure, we show that additional rings in the cylindrical shell structure can be formed by decreasing the curvature of the parabolic potential well, whose axis of symmetry is perpendicular to the gravitational force, increasing the number density, and lowering the screening parameter. Finally, we discuss the application of these findings to dusty plasma experiments with ring electrodes and weak magnetic fields.

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“…[6][7][8][9][10][11][12] As dust is a common species in a wide range of space and astrophysical plasmas, such as the cometary tails, interstellar clouds, Earth mesosphere and ionosphere, Saturn's rings, the gossamer ring of Jupiter, and in laboratory experiments, [5,[13][14][15] the study of dust-plasma interaction has become a hub of interest for recent research in plasma physics. [16,17] The propagation of a solitary wave is important as it describes the characteristic nature of the interaction of the wave with the plasma constituents. However, once the ion velocity approaches to the velocity of light, the amplitude, width, and energy of the wave will each experience a drastic modification as the relativistic effect becomes dominant.…”

Section: Introductionmentioning

confidence: 99%

K–P–Burgers equation in negative ion-rich relativistic dusty plasma including the effect of kinematic viscosity

Dev

Deka

Sarma³

et al. 2016

Chinese Phys. B

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The stationary solution is obtained for the K-P-Burgers equation that describes the nonlinear propagations of dust ion acoustic waves in a multi-component, collisionless, un-magnetized relativistic dusty plasma consisting of electrons, positive and negative ions in the presence of charged massive dust grains. Here, the Kadomtsev-Petviashvili (K-P) equation, threedimensional (3D) Burgers equation, and K-P-Burgers equations are derived by using the reductive perturbation method including the effects of viscosity of plasma fluid, thermal energy, ion density, and ion temperature on the structure of a dust ion acoustic shock wave (DIASW). The K-P equation predictes the existences of stationary small amplitude solitary wave, whereas the K-P-Burgers equation in the weakly relativistic regime describes the evolution of shock-like structures in such a multi-ion dusty plasma.

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Cluster Rotation in an Unmagnetized Dusty Plasma

Cited by 12 publications

References 34 publications

Electric field in two-dimensional complex plasma crystal: Simulated lattices

Electric field in two-dimensional complex plasma crystal: Simulated lattices

Ring structural transitions in strongly coupled dusty plasmas

K–P–Burgers equation in negative ion-rich relativistic dusty plasma including the effect of kinematic viscosity

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