Sergey A. Khrapak
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View article: Particle dynamics in deposition of porous films with a modulated radio-frequency atmospheric pressure glow discharge
Particle dynamics in deposition of porous films with a modulated radio-frequency atmospheric pressure glow discharge Open
Nanoparticles grown in a plasma are used to visualize the process of film deposition in a modulated radio-frequency atmospheric pressure glow discharge. Modulation of the plasma makes it possible to successfully prepare porous TiO2 films. …
View article: Particle dynamics in deposition of porous films with a modulated radio-frequency atmospheric pressure glow discharge
Particle dynamics in deposition of porous films with a modulated radio-frequency atmospheric pressure glow discharge Open
Nanoparticles grown in a plasma are used to visualize the process of film deposition in a modulated radio-frequency atmospheric pressure glow discharge. Modulation of the plasma makes it possible to successfully prepare porous TiO2 films. …
View article: Thermal conductivity of strongly coupled Yukawa fluids
Thermal conductivity of strongly coupled Yukawa fluids Open
A vibrational model of heat conduction in liquids with soft pairwise interactions is applied to estimate the thermal conductivity coefficient of strongly coupled Yukawa fluids. A reasonable agreement with the available data from numerical …
View article: Thermal conduction in two-dimensional complex plasma layers
Thermal conduction in two-dimensional complex plasma layers Open
A simple vibrational model of heat transfer in two-dimensional (2D) fluids relates the heat conductivity coefficient to the longitudinal and transverse sound velocities, specific heat, and mean interatomic separation. This model is demonst…
View article: Two-body entropy of two-dimensional fluids
Two-body entropy of two-dimensional fluids Open
View article: Unified description of sound velocities in strongly coupled Yukawa systems of different spatial dimensionality
Unified description of sound velocities in strongly coupled Yukawa systems of different spatial dimensionality Open
Sound velocities in classical single-component fluids with Yukawa (screened Coulomb) interactions are systematically evaluated and analyzed in one-, two-, and three spatial dimensions (D=1,2,3). In the strongly coupled regime, the convenie…
View article: Modified Frost formula for the mobilities of positive ions in their parent gases
Modified Frost formula for the mobilities of positive ions in their parent gases Open
A modification to the semi-empirical Frost formula for the mobilities of singly charged positive ions in their parent gases is proposed. The modified expression demonstrates excellent agreement with experimental results for different ioniz…
View article: Onset of transverse (shear) waves in strongly-coupled Yukawa fluids
Onset of transverse (shear) waves in strongly-coupled Yukawa fluids Open
A simple practical approach to describe transverse (shear) waves in strongly-coupled Yukawa fluids is presented. Theoretical dispersion curves, based on hydrodynamic consideration, are shown to compare favorably with existing numerical res…
View article: Thermodynamics of two-dimensional Yukawa systems across coupling regimes
Thermodynamics of two-dimensional Yukawa systems across coupling regimes Open
Thermodynamics of two-dimensional Yukawa (screened Coulomb or Debye-Hückel) systems is studied systematically using molecular dynamics (MD) simulations. Simulations cover very broad parameter range spanning from weakly coupled gaseous stat…
View article: Grüneisen parameter for strongly coupled Yukawa systems
Grüneisen parameter for strongly coupled Yukawa systems Open
The Grüneisen parameter is evaluated for three-dimensional Yukawa systems in the strongly coupled regime. A simple analytical expression is derived from the thermodynamic consideration and its structure is analysed in detail. Possible appl…
View article: Fingerprints of different interaction mechanisms on the collective modes in complex (dusty) plasmas
Fingerprints of different interaction mechanisms on the collective modes in complex (dusty) plasmas Open
In this paper, we discuss the relations between the exact shape of interparticle interactions in complex (dusty) plasmas and the dispersion relation of the longitudinal collective mode. Several representative repulsive potentials, predicte…
View article: Onset of negative dispersion in one-component-plasma revisited
Onset of negative dispersion in one-component-plasma revisited Open
A simple approach to describe the long-wavelength dispersion of the longitudinal (plasmon) mode of the classical one-component-plasma (OCP), with the main objective to correctly capture the onset of negative dispersion, is discussed. The a…
View article: Freezing and melting equations for the <i>n</i>-6 Lennard-Jones systems
Freezing and melting equations for the <i>n</i>-6 Lennard-Jones systems Open
We generalize previous approach of Khrapak and Morfill [J. Chem. Phys. 134, 094108 (2011)] to construct simple and sufficiently accurate freezing and melting equations for the conventional Lennard-Jones (LJ) system to n-6 LJ systems, using…
View article: Collective modes in two-dimensional one-component-plasma with logarithmic interaction
Collective modes in two-dimensional one-component-plasma with logarithmic interaction Open
The collective modes of a familiar two-dimensional one-component-plasma with the repulsive logarithmic interaction between the particles are analysed using the quasi-crystalline approximation (QCA) combined with the molecular dynamic simul…
View article: On the long-waves dispersion in Yukawa systems
On the long-waves dispersion in Yukawa systems Open
A useful simplification of the quasilocalized charge approximations (QLCA) method to calculate the dispersion relations in strongly coupled Yukawa fluids is discussed. In this simplified version, a simplest possible model radial distributi…
View article: Thermodynamics of Yukawa fluids near the one-component-plasma limit
Thermodynamics of Yukawa fluids near the one-component-plasma limit Open
Thermodynamics of weakly screened (near the one-component-plasma limit) Yukawa fluids in two and three dimensions is analyzed in detail. It is shown that the thermal component of the excess internal energy of these fluids, when expressed i…