Review
Physics, Multidisciplinary
Lenaic Couedel
Summary: This article discusses the dynamics of temporal complex plasma afterglow, presents experimental and theoretical results, and introduces the basics of temporal afterglow modeling.
FRONTIERS IN PHYSICS
(2022)
Article
Astronomy & Astrophysics
Gadi Afek, Fernando Monteiro, Jiaxiang Wang, Benjamin Siegel, Sumita Ghosh, David C. Moore
Summary: mCPs, hypothesized particles with a fraction of the charge of the electron, are the subject of a sensitive search in this study that aims to improve detection of their abundance in matter. The research covers a wide range of masses and charges where mCPs could form stable bound states with matter, filling a gap in parameter space previously unexplored by traditional methods.
Article
Physics, Multidisciplinary
Tim Jacobus Adrianus Staps, Marvin Igor Van de Ketterij, Bart Platier, Job Beckers
Summary: Dusty plasmas are common in the universe and have various applications, but the theoretical understanding of the interaction between dust grains and their environment is still incomplete. Experimental measurements presented by the authors challenge the widely used collisionless electron assumptions in current models of dusty plasmas. The findings suggest that the electron current may not be collisionless in certain plasma conditions, which could require corrections to existing theories.
COMMUNICATIONS PHYSICS
(2021)
Article
Physics, Multidisciplinary
Prerana Sharma, Shweta Jain, Linda Xavier
Summary: Theoretical investigation of Jeans instability in a collisional magnetized dusty plasma considering dust charge gradient and polarization forces has been conducted. The study revealed that the growth rate of gravitational instability decreases with the presence of charge gradient force, collision frequency, thermal velocity, and external magnetic field, but increases with dust polarization force. The existence of dust charge gradient and polarization forces along with an external magnetic field improves the criterion for Jeans instability.
Article
Physics, Multidisciplinary
Bivash Dolai, R. P. Prajapati
Summary: The study reveals the significant influence of ion drag and dust charge gradient forces on the fragmentation of unmagnetized, self-gravitating dust clouds, with previous theoretical foundations being altered.
Article
Astronomy & Astrophysics
Dian P. Triani, Manodeep Sinha, Darren J. Croton, Eli Dwek, Camilla Pacifici
Summary: The study reveals a close relationship between the dust content of galaxies and fundamental properties such as gas metallicity and specific star formation rate. ISM dust-rich galaxies are typically late-types with high sSFR, while ISM dust-poor galaxies resemble early-type galaxies.
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
(2021)
Article
Physics, Applied
Neeraj Chaubey, J. Goree
Summary: A new method is demonstrated for controlling the charge of dust particles in a plasma afterglow, allowing a wider range of outcomes compared to a previous method. By switching the DC voltage of the electrode to a positive value at a specified delay time, instead of maintaining a constant negative voltage, the residual charge of the dust particles can be gradually controlled over a range that includes both negative and positive values. The results also provide insight into the time development of a dust particle's charge in the afterglow.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2023)
Article
Physics, Applied
S. E. Ennadifi
Summary: Motivated by the expanding interest in complex plasmas, this article discusses the equivalent photon charge in dusty electron-ion plasmas. The dusty plasma response, in terms of the electron density perturbation driven by electromagnetic waves, is investigated. The resulting polarization of the plasma medium caused by the photon ponderomotive force of the electromagnetic radiation pressure gives rise to an effective photon electric charge. The acquired photon charge is determined based on the characteristic parameters, with a strong dependence on the free electron density and the photon frequency. This photonic charge is relevant for studying the photon-plasma couplings in most plasma mediums, especially those in the early Universe.
MODERN PHYSICS LETTERS B
(2023)
Article
Physics, Fluids & Plasmas
S. K. Mishra
Summary: This study investigates the possibility of small amplitude nonlinear dust acoustic excitations in a two-component dusty plasma over sunlit locations on the Moon. By adopting a reductive perturbation approach, the analysis reveals that dust charge variation induces collisionless dissipation, damping amplitude and reducing the velocity of propagating dust acoustic waves. The nonlinear analysis also suggests the presence of dust acoustic solitary and shock wave structures under typical solar irradiation conditions, with dispersion and dissipation effects playing important roles in the fluid dynamics.
PHYSICS OF PLASMAS
(2021)
Article
Physics, Fluids & Plasmas
Linjing Guo, Lixin Guo, Liping Gan
Summary: This paper presents the calculation of the effects of dust particles from the thermal protection layer on microstrip antenna radiation and reveals that these particles cause greater attenuation of incident waves. Different dust parameters have varying effects on the penetrating electric field. The study emphasizes the significance of considering the generated dust particles in electromagnetic computations due to their impact on the electromagnetic properties of the plasma sheath.
PHYSICS OF PLASMAS
(2021)
Article
Astronomy & Astrophysics
J. W. Isbell, J. -U. Pott, K. Meisenheimer, M. Stalevski, K. R. W. Tristram, J. Leftley, D. Asmus, G. Weigelt, V. Gamez Rosas, R. Petrov, W. Jaffe, K. -h. Hofmann, T. Henning, B. Lopez
Summary: In this paper, we present the first-ever L- and M-band interferometric observations of Circinus, revealing a thin edge-on disk and a point-like source. The study also demonstrates the absence of direct sightlines to hot dust surfaces in the circumnuclear dust structure of Circinus. These findings have important implications for the unified scheme of active galactic nuclei and radiation-driven fountain models.
ASTRONOMY & ASTROPHYSICS
(2023)
Article
Astronomy & Astrophysics
L. K. Haikala, R. Salinas, T. Richtler, M. Gomez, G. F. Gahm, K. Mattila
Summary: Using ALMA, APEX, and Gemini GMOS spectroscopy, the extragalactic nature of the dust patch on the disk of the NGC 3269 galaxy in the Antlia cluster was confirmed, but its origin remains unknown.
ASTRONOMY & ASTROPHYSICS
(2021)
Article
Physics, Multidisciplinary
Sanjib Sarkar, Jyoti K. Atul, Modhuchandra Laishram
Summary: The effect of power-law dust size distribution and dust number density on the low frequency hall current instabilities in and above the equatorial electrojet altitudes has been studied. The analysis shows that a broad dust size distribution and high dust number density can significantly increase the growth rate and frequency of the instability in the electrojet region. However, these two dust parameters have a negligible effect on the instability above the electrojet region where ions become weakly magnetized.
Article
Chemistry, Physical
Xinyue Wang, Huijie Guo, Dawei Kang, Tonu Pullerits, Peng Song
Summary: The electric-field-dependent charge-separation dynamics of non-fullerene acceptors D/A heterojunctions were simulated using Marcus theory. The excited-state characteristics on the D/A interface showed differences under different electric-field intensities, providing microscopic details of the atomic-level non-fullerene D/A interface. The reorganization energy was found to mainly determine the charge-transfer rate, which showed variation depending on the electric-field intensity and was consistent with the Marcus inverted region. The charge separation exhibited significant advantages and the trifurcated structure of the molecule provided multiple charge transfer paths for charge separation.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Engineering, Chemical
Yuanxin Zhai, Dan Bai, Yifan Wang, Yaozhong Zhang, Yongchao Qi, Xiaopeng Qiu, Yi-fan Wang, Yi Xuan Wang, Xing Zheng
Summary: This study compared the adsorption behaviors of typical organics and the fouling effect on a polyvinylidene fluoride membrane surface under different Na+ concentrations, and investigated the impact of structural variation on these behaviors. The results indicate that the impact of Na+ on organics depends on their charge and structure. Different organics exhibited different changes in interaction force and relative irreversibility with the membrane at different Na+ concentrations.
Article
Physics, Fluids & Plasmas
M. Mikikian, S. Labidi, E. von Wahl, J. F. Lagrange, T. Lecas, V. Massereau-Guilbaud, I. Geraud-Grenier, E. Kovacevic, J. Berndt, H. Kersten, T. Gibert
PLASMA PHYSICS AND CONTROLLED FUSION
(2017)
Article
Physics, Fluids & Plasmas
I. B. Denysenko, E. von Wahl, S. Labidi, M. Mikikian, H. Kersten, T. Gibert, E. Kovacevic, N. A. Azarenkov
PLASMA PHYSICS AND CONTROLLED FUSION
(2019)
Article
Physics, Applied
Igor B. Denysenko, Erik von Wahl, Safa Labidi, Maxime Mikikian, Holger Kersten, Titaina Gibert
PLASMA PROCESSES AND POLYMERS
(2019)
Article
Chemistry, Physical
N. Semmar, A. Talbi, M. Mikikian, A. Stolz, A. Melhem, D. de Sousa Meneses
APPLIED SURFACE SCIENCE
(2020)
Article
Physics, Applied
I Geraud-Grenier, M. Mikikian, F. Faubert, V Massereau-Guilbaud
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Physics, Applied
I. B. Denysenko, E. von Wahl, M. Mikikian, J. Berndt, S. Ivko, H. Kersten, E. Kovacevic, N. A. Azarenkov
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Physics, Applied
I. B. Denysenko, I Stefanovic, M. Mikikian, E. Kovacevic, J. Berndt
Summary: The study examined the properties of argon/dust and pure argon pulsed plasmas using a spatially-averaged model. The results showed a good qualitative agreement between calculated and experimental data, with a better fit observed using Druyvesteyn EEPF. Additionally, the analysis highlighted the impact of pulsing frequency on plasma properties, revealing differences in density between dusty and dust-free plasmas.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Applied
I. B. Denysenko, M. Mikikian, N. A. Azarenkov
Summary: This study investigates the charge and dynamics of dust particles in afterglow plasma using a 1D model in the diffusion approximation, taking into account the transition from ambipolar to free diffusion. The research shows how external conditions affect the motion of dust particles, and highlights the differences in dust dynamics in microgravity and presence of gravity conditions.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Physics, Fluids & Plasmas
I. B. Denysenko, M. Mikikian, N. A. Azarenkov
Summary: The behavior of dust particle discharge in argon plasma afterglow was investigated using different approaches, obtaining the dust charge distribution function (DCDF) and comparing the calculation results with experimental data. It was found that considering the emission of electrons in collisions between excited argon atoms and dust particles in the dust discharging model can provide a better qualitative agreement with experimental observations.
PHYSICS OF PLASMAS
(2022)
Article
Physics, Applied
Glenn O. Kandjani, Pascal Brault, Maxime Mikikian, Gautier Tetard, Armelle Michau, Khaled Hassouni
Summary: Molecular dynamics simulations were used to investigate reactions in a low-pressure methane plasma diluted in argon. A 1D fluid model was utilized to determine the initial molar fractions of species, which served as input for the reactive molecular dynamics simulations. The study was conducted at temperatures of 300, 400, 500, and 1000 K. The results showed that increasing the temperature expanded the range of molecules formed, with C2H as the main precursor and CH3 as the main intermediate precursor for the formation of large molecules.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Physics, Applied
Glenn-Christopher Otakandza-Kandjani, Pascal Brault, Maxime Mikikian, Armelle Michau, Khaled Hassouni
Summary: Molecular dynamics simulations are used to calculate the surface loss probabilities of neutral species in an argon-methane plasma. These probabilities account for both sticking and surface recombination. The study considers the formation of reactive and nonreactive volatile species and finds that stable species are reflected when a hydrocarbon film starts growing on the surface. CH3 is mainly lost through surface recombination, leading to volatile product formation rather than film growth. The surface loss probability of C2H is consistent with previous literature, but our results show that its main loss process is surface recombination rather than sticking.
PLASMA PROCESSES AND POLYMERS
(2023)
Article
Physics, Nuclear
I. B. Denysenko, M. Mikikian, N. A. Azarenkov
Summary: In this study, the dust charge distribution function (DCDF) in an argon plasma afterglow is obtained by numerically solving the master equation as a one-step stochastic process for dust discharging. The calculated DCDFs are approximated well by Gaussian distributions under different external conditions. The dependence of DCDF, mean dust charge, variance, and charging time on dust size is investigated. Furthermore, the impact of electron emission from collisions between excited argon atoms and dust particles on the DCDF is analyzed, showing that the emission effect is more significant for larger nanoparticles.
PROBLEMS OF ATOMIC SCIENCE AND TECHNOLOGY
(2022)
Proceedings Paper
Physics, Applied
I. Geraud-Grenier, W. Desdions, F. Faubert, M. Mikikian, V. Massereau-Guilbaud
DIVERSE WORLD OF DUSTY PLASMAS
(2018)
Proceedings Paper
Physics, Applied
S. Labidi, T. Lecas, E. Kovacevic, J. Berndt, T. Gibert, M. Mikikian
DIVERSE WORLD OF DUSTY PLASMAS
(2018)
Proceedings Paper
Physics, Applied
M. Mikikian, S. Labidi, E. von Wahl, J-F. Lagrange, T. Lecas, V. Massereau-Guilbaud, I. Geraud-Grenier, E. Kovacevic, J. Berndt, H. Kersten, T. Gibert
DIVERSE WORLD OF DUSTY PLASMAS
(2018)
