Spin electron acoustic soliton: Separate spin evolution of electrons with exchange interaction

Abstract

Separate spin evolution quantum hydrodynamics is generalized to include the Coulomb exchange interaction. The Coulomb exchange interaction is considered as the interaction between the spin-down electrons being in the quantum states occupied by one electron, giving main contribution in the equilibrium. The generalized model is applied to study the non-linear spin-electron acoustic waves. Existence of the spin-electron acoustic soliton is demonstrated. Contributions of the concentration, spin polarization, and exchange interaction in the properties of the spin electron acoustic soliton are studied.

10 pages, 6 figures

References in corpus (8)

• Spin magnetohydrodynamics
• Quantum plasma effects in the classical regime
• Separated spin-up and spin-down quantum hydrodynamics of degenerated electrons: spin-electron acoustic wave appearance
• Exchange effects in Coulomb quantum plasmas: Dispersion of waves in 2D and 3D mediums
• Exchange effects in a cold plasma
• Exchange effects in magnetized quantum plasmas
• Hydrodynamic and kinetic models for spin-1/2 electron-positron quantum plasmas: Annihilation interaction, helicity conservation, and wave dispersion in magnetized plasmas
• Exchange Coulomb interaction in nanotubes: Dispersion of Langmuir waves

Cited by in corpus (8)

• On the rich eight branch spectrum of the oblique propagating longitudinal waves in partially spin polarized electron-positron-ion plasmas
• Nonlinear separate spin evolution in degenerate electron-positron-ion plasmas
• Surface spin-electron acoustic waves in magnetically ordered metals
• Kinetic analysis of spin current contribution to spectrum of electromagnetic waves in spin-1/2 plasma, Part I: Dielectric permeability tensor for magnetized plasmas
• Kinetic analysis of spin current contribution to spectrum of electromagnetic waves in spin-1/2 plasma, Part II: Dispersion dependencies
• Extraordinary waves in two dimensional electron gas with separate spin evolution and Coulomb exchange interaction
• Short-scale quantum kinetic theory including spin-orbit interactions
• Hydrodynamics of quantum corrections to the Coulomb interaction via the third rank tensor evolution equation: Application to the Langmuir waves and the spin-electron-acoustic waves