Transport properties of partially ionized hydrogen plasma

Рамазанов, Т. С.; Galiyev, K.; Dzhumagulova, K. N.; Röpke, G.; Redmer, R.

doi:10.1088/0305-4470/36/22/345

Cited by 18 publications

(7 citation statements)

References 20 publications

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“…where r 0 = 1.4565a B is the cut-off radius, α = 4.5a 3 B is polarizibility of the hydrogen atom. The potential (5) was modified and used for the investigation of the thermodynamic and the transport properties of partially-ionized plasmas [15][16][17]. This screened Buckingham potential takes into account the screening effect at large distances and reads:…”

Section: Elastic Scattering Phase Shifts and Bound State Formationmentioning

confidence: 99%

Phase Shifts and the Second Virial Coefficient for a Partially Ionized Hydrogen Plasma

Omarbakiyeva

Röpke

Рамазанов

2009

Contrib. Plasma Phys.

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Key words Phase shifts, second virial coefficient, electron-atom interaction PACS 52.25.KnThe influence of the interaction of electrons with hydrogen atoms on the thermodynamical properties of dense plasmas is investigated using a virial expansion approach. The second virial coefficient for the electron-atom interaction is obtained from the Beth-Uhlenbeck formula. Elastic scattering phase shifts are calculated with the help of the phase function method for different polarization potential models. Results for the second virial coefficient are given that take into account both the bound state part and the scattering state contribution.

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Section: Elastic Scattering Phase Shifts and Bound State Formationmentioning

confidence: 99%

Phase Shifts and the Second Virial Coefficient for a Partially Ionized Hydrogen Plasma

Omarbakiyeva

Röpke

Рамазанов

2009

Contrib. Plasma Phys.

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“…Recently, there are strong interests in the physical properties of dense plasmas in order to explore physical processes in astrophysical and laboratory semiclassical plasmas such as compact astrophysical objects, intense laser-plasma experiments, nano-wires, quantum dots, and semiconductor devices. [1][2][3][4][5][6][7][8][9][10] It has been shown that the quantum diffraction effect [6][7][8] plays important role on the effective interaction potential for small or intermediate interparticle spacing in dense semiclassical plasmas. In various plasmas, the elastic and inelastic collision and radiation processes [11][12][13][14][15][16][17][18] have received considerable attention-since the atomic processes can be used as plasma diagnostic tools for investigating the plasma parameters, and the collision process is known as the standard problem in plasma electrodynamics.…”

Section: Introductionmentioning

confidence: 99%

Influence of quantum diffraction and shielding on electron-ion collision in two-component semiclassical plasmas

Hong

Jung

2015

Physics of Plasmas

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The influence of quantum diffraction and shielding on the electron-ion collision process is investigated in two-component semiclassical plasmas. The eikonal method and micropotential taking into account the quantum diffraction and shielding are used to obtain the eikonal scattering phase shift and the eikonal collision cross section as functions of the collision energy, density parameter, Debye length, electron de Broglie wavelength, and the impact parameter. The result shows that the quantum diffraction and shielding effects suppress the eikonal scattering phase shift as well as the differential eikonal collision cross section, especially, in small-impact parameter regions. It is also shown that the quantum shielding effect on the eikonal collision cross section is more important in low-collision energies. In addition, it is found that the eikonal collision cross section increases with an increase in the density parameter. The variations of the eikonal cross section due to the quantum diffraction and shielding effects are also discussed. V

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“…Recently the importance of electronically excited states (EES) in affecting the transport properties of local thermodynamic equilibrium (LTE) thermal plasmas has gained interest as small concentrations of EES play an important role in affecting transport coefficients due to the dependence of the transport cross-section on the principal quantum number (Bruno et al 2007a, Capitelli et al 2003, 2004, Celiberto et al 1998, Singh and Singh 2006, Sourd et al 2007a. In addition, its technological applications (Boulos et al 1994) and theoretical study without EES (Murphy 2000, 2001, Ramazanov et al 2003 are well established. Within the framework of the Chapman-Enskog method, the importance of including the higher-order contributions while evaluating the transport properties has been emphasized in our recent work (Singh and Singh 2006) on viscosity as well as in the works of Capitelli and co-workers for hydrogen thermal plasmas.…”

Section: Introductionmentioning

confidence: 99%

Effect of excited states on higher-order contributions to electron transport in hydrogen thermal plasmas

Singh¹,

Sharma²,

Singh³

2008

J. Phys. D: Appl. Phys.

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Electronically excited states (EES) affect transport properties of thermal plasmas significantly. Within the framework of the Chapman–Enskog method, higher-order contributions to electron thermal conductivity and electrical conductivity have been derived for thermal hydrogen plasmas with and without excited states and these calculations assume local thermodynamic equilibrium conditions in the temperature range from 10 000 to 30 000 K for a wide range of pressures. Small concentrations of the atomic excited states affect the higher-order contributions to the electron transport properties of the plasmas. It has been observed that the effect of EES on electrical conductivity is modest compared with that on electron thermal conductivity for which the third-order contribution shows unique behaviour, thereby emphasizing the role of e–H(n) interactions especially at high pressures.

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Transport properties of partially ionized hydrogen plasma

Cited by 18 publications

References 20 publications

Phase Shifts and the Second Virial Coefficient for a Partially Ionized Hydrogen Plasma

Phase Shifts and the Second Virial Coefficient for a Partially Ionized Hydrogen Plasma

Influence of quantum diffraction and shielding on electron-ion collision in two-component semiclassical plasmas

Effect of excited states on higher-order contributions to electron transport in hydrogen thermal plasmas

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