Raman three-wave interaction in partially spin polarized plasma

Shahid, Muhammad; Iqbal, Z.; Jamil, Muhammad; Murtaza, G.

doi:10.1063/1.4986010

Cited by 24 publications

(7 citation statements)

References 52 publications

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“…The Raman threewave interaction for the pump wave (O-mode), sideband Shear Alfven wave, and the electron plasma perturbations, is considered in terms SSE-QHD equations. It is found that the nonlinear growth rate is suppressed due to the spin effects [24]. Ion-acoustic shock wave propagation in dense magnetized plasmas with relative density effects of spin-up and spin-down degenerate electrons is studied in Ref.…”

Section: Introductionmentioning

confidence: 99%

Kinetic description of the oblique propagating spin-electron acoustic waves in degenerate plasmas

Andreev

2018

Physics of Plasmas

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Oblique propagation of the spin-electron acoustic waves in degenerate magnetized plasmas is considered in terms of quantum kinetics with the separate spin evolution, where the spin-up electrons and the spin-down electrons are considered as two different species with different equilibrium distributions. It is considered in the electrostatic limit. Corresponding dispersion equation is derived. Analytical analysis of the dispersion equation is performed in the long-wavelength limit to find an approximate dispersion equation describing the spin-electron acoustic wave. The approximate dispersion equation is solved numerically. Real and imaginary parts of the spin-electron acoustic wave frequency are calculated for different values of the parameters describing the system. It is found that the increase of angle between direction of wave propagation and the external magnetic field reduces the real and imaginary parts of spin-electron acoustic wave frequency. The increase of the spin polarization decreases the real and imaginary parts of frequency either. The imaginary part of frequency has nonmonotonic dependence on the wave vector which shows a single maximum. The imaginary part of frequency is small in compare with the real part for all parameters in the area of applicability of the obtained dispersion equation.

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Section: Introductionmentioning

confidence: 99%

Kinetic description of the oblique propagating spin-electron acoustic waves in degenerate plasmas

Andreev

2018

Physics of Plasmas

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“…Our main purpose is to investigate the effect of the SRS on the spin dynamics in the case of a polarized electron plasma. A similar problem was studied recently using a hydrodynamic approach [42].…”

Section: Stimulated Raman Scatteringmentioning

confidence: 97%

Spin effects in ultrafast laser-plasma interactions

Manfredi

Hervieux

Crouseilles

2022

Eur. Phys. J. Spec. Top.

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Ultrafast laser pulses interacting with plasmas can give rise to a rich spectrum of physical phenomena, which have been extensively studied both theoretically and experimentally. Less work has been devoted to the study of polarized plasmas, where the electron spin may play an important role. In this short review, we illustrate the use of phase-space methods to model and simulate spin-polarized plasmas. This approach is based on the Wigner representation of quantum mechanics, and its classical counterpart, the Vlasov equation, which are generalized to include the spin degrees of freedom. Our approach is illustrated through the study of the stimulated Raman scattering of a circularly polarized electromagnetic wave interacting with a dense electron plasma.

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“…Majority of application of the separate spin evolution quantum hydrodynamics (SSE-QHDs) is related to the spin-electron acoustic waves (SEAWs). However, there are papers devoted to the influence of the separate spin evolution and the spin polarized Fermi pressure on the following phenomena: Raman three-wave interaction for the pump wave (O-mode), sideband Shear Alfven wave, and the electron * Electronic address: andreevpa@physics.msu.ru plasma perturbations [33], and non-linear propagation of ion-acoustic waves [34].…”

Section: Introductionmentioning

confidence: 99%

Oblique propagation of longitudinal spin-electron acoustic waves under the influence of the Coulomb exchange interaction and the quantum Bohm potential

Andreev

2019

Physics of Plasmas

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Influence of the exchange interaction on the properties of the spin-electron acoustic waves at the oblique propagation of waves relatively to the external magnetic field in the magnetically ordered metals is studied. The spectra of the Langmuir wave and the Trivelpiece-Gould wave are also considered. It is well-known that there are two branches of spectrum of the spin-electron acoustic waves in this regime. Change their properties under influence of the exchange interaction is studied. The quantum Bohm potential is included either. The exchange interaction and quantum Bohm potential gives opposite contributions, but they do not compensate each other since they have different dependence on the wave vector. This competition creates a non-monotonical behavior of the Trivelpiece-Gould wave spectrum. The concavity changes in the monotonic spectra of the Langmuir wave and the SEAWs are found.

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Raman three-wave interaction in partially spin polarized plasma

Cited by 24 publications

References 52 publications

Kinetic description of the oblique propagating spin-electron acoustic waves in degenerate plasmas

Kinetic description of the oblique propagating spin-electron acoustic waves in degenerate plasmas

Spin effects in ultrafast laser-plasma interactions

Oblique propagation of longitudinal spin-electron acoustic waves under the influence of the Coulomb exchange interaction and the quantum Bohm potential

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