Waves of spin-current in magnetized dielectrics

Abstract

Spin-current is an important physical quantity in present day spintronics and it might be very usefull in the physics of quantum plasma of spinning particles. Thus it is important to have an equation of the spin-current evolution. This equation naturally appears as a part of a set of the quantum hydrodynamics (QHD) equations. Consequently, we present the set of the QHD equations derived from the many-particle microscopic Schrodinger equation, which consists of the continuity equation, the Euler equation, the Bloch equation and equation of the spin-current evolution. We use these equations to study dispersion of the collective excitations in the three dimensional samples of the magnetized dielectrics. We show that dynamics of the spin-current leads to formation of new type of the collective excitations in the magnetized dielectrics, which we called spin-current waves.

10 pages, 2 figures

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Cited by in corpus (7)

• Spin electron acoustic soliton: Separate spin evolution of electrons with exchange interaction
• Spin-electron acoustic waves: The Landau damping and ion contribution in the spectrum
• Hydrodynamic and kinetic models for spin-1/2 electron-positron quantum plasmas: Annihilation interaction, helicity conservation, and wave dispersion in magnetized plasmas
• Kinetic analysis of spin current contribution to spectrum of electromagnetic waves in spin-1/2 plasma, Part I: Dielectric permeability tensor for magnetized plasmas
• Spin current evolution in the separated spin-up and spin-down quantum hydrodynamics
• Kinetic description of the oblique propagating spin-electron acoustic waves in degenerate plasmas
• NLSE for quantum plasmas with the radiation damping