Tunable rheological behaviour of magnetized complex plasma

Dutta, Biswajit; Sarma, Hirakjyoti; Bezbaruah, Pratikshya; Das, Nilakshi

doi:10.1016/j.physleta.2022.128110

Cited by 3 publications

(4 citation statements)

References 48 publications

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“…The different simulation system sizes did not significantly affect ψ(τ), which confirmed earlier work [27]. These simulation outcomes indicate that the phase transition phenomena occur in the presence of both external M z and M xy electric fields in the same way, which agrees well with ER-CDPs [14,15] and also with magnetized plasma [49,67].…”

Section: Simulation Results and Discussionsupporting

confidence: 85%

“…This method was previously used to compute the shear viscosity for CDPs of 2D [39,40] and 3D [36] without an EEF. Recently the G-K method was also employed to compute the effect of magnetic field on shear viscosity corresponding to the phase transitions in CDPs [49] and ionic liquids [48]. The minimum possible shear viscosity values were reported at Γ ≈ 20 [36,[43][44][45][46].…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

“…Previous studies show that the shear viscosity of fluids increased drastically for the applications of an EEF such as conventional ER fluids [7], simple liquids [47] and ionic liquids [48]. The shear viscosity of CDPs increased under the action of an external magnetic field [49]. Literature shows that no study has been reported previously related to the shear viscosity of CDPs using EEF with MD simulations.…”

Section: Introductionmentioning

confidence: 99%

“…The effects of EEF have widely been investigated in various physical systems [65] and ionic liquids [48,66]. The external magnetic field also affects the diffusion of CDPs [49,67]. Because the external electric and magnetic fields produced the phase transitions of CDPs and are connected with the diffusion of particles.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Tuning the structure and transport properties of complex plasmas using electric field

Shakoori¹,

He²,

Shahzad³

et al. 2022

Phys. Scr.

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In this work, we explored the effects of uniaxial (Mz) and biaxial (Mxy) ac electric fields on the structure and transport properties of complex (dusty) plasmas (CDPs) using molecular dynamics simulations. Structures are analyzed using two diagnostic methods, one is lattice correlation function ψ() and the second is radial distribution function g(r) under the influence of Mz and Mxy, respectively. The Green-Kubo (G-K) method has been used to compute the shear viscosity (ηxy) in the Mxy ac electric field. The diffusive behavior of dust particles is investigated using G-K and Einstein methods in Mz. In the limits of the varying electric field, these properties of CDPs are accounted for an appropriate range of plasma Coulomb coupling (Γ) and constant Debye screening strength (κ = 0.50) parameters with different system sizes. The simulation outcomes of ψ() and g(r) indicate that the phase transition phenomena occur in CDPs with the variations of Mz, Mxy and Γ. The ηxy and diffusion coefficients significantly increase with increasing parallel electric fields. The subdiffusion motion for short-time behavior and superdiffusion motion for long-time behavior is observed in the presence of moderate to strong electric field strengths. It is revealed that the phase transition and changes in the transports properties of CDPs significantly depend on the strength of the external electric field and plasma parameter (Γ). Novel regimes are observed where CDPs quickly respond to the external electric field. Simulation results are outstanding in the combined effects of Yukawa and anisotropic wake potential on CDPs structural and transport properties. Simulation results demonstrate that the CDPs have electrorheological characteristics. Due to these unique properties, electrorheological CDPs may be used as a platform to study the electrorheological aspects of soft matter. There is a possibility that CDPs will be used as electrorheological material in the near future.

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Section: Simulation Results and Discussionsupporting

confidence: 85%

Section: Simulation Results and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Tuning the structure and transport properties of complex plasmas using electric field

Shakoori¹,

He²,

Shahzad³

et al. 2022

Phys. Scr.

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Influence of a transverse magnetic field on wakefield oscillations around a charged dust grain in complex plasma

Dutta,

Gogoi,

Das

2024

Physics of Plasmas

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In the presence of ion streaming, the potential around dust particles immersed in plasma becomes anisotropic. In this scenario, the repulsive Debye–Hückel potential is superimposed with an attractive wake potential. This work presents an analytical study of the complex behavior of such a wake potential in the presence of a magnetic field (oriented transversely to the ion flow) and ion-neutral collisions using linear response formalism, both in subsonic and supersonic regimes. The amplitude and periodicity of this potential are found to be controlled by the interplay among ion streaming velocity, ion cyclotron frequency, and ion-neutral collision frequency. Due to the tunable nature of this potential, it is possible to control the crystal formation, phase transitions, and transport properties of dusty plasma by adjusting the external magnetic field. The study also reveals that the wake potential almost disappears in a collision-dominant regime.

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Diffusion Coefficients for Complex Plasmas in Parallel Electric Field

Shakoori

Shahzad

et al. 2022

Plasma Phys. Rep.

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Tunable rheological behaviour of magnetized complex plasma

Cited by 3 publications

References 48 publications

Tuning the structure and transport properties of complex plasmas using electric field

Tuning the structure and transport properties of complex plasmas using electric field

Influence of a transverse magnetic field on wakefield oscillations around a charged dust grain in complex plasma

Diffusion Coefficients for Complex Plasmas in Parallel Electric Field

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