Document Type

Article

Publication Date

12-15-1998

Publication Title

Physical Review B

Publisher

The American Physical Society

Abstract

The dispersion relations of the collective excitations induced in a 2D spin-polarized electron gas are derived within the framework of the Landau-Silin theory applied to a two-component Fermi liquid. The quasiparticle interaction is described by spin-dependent coefficients, which are parametric functions of the initial degree of polarization. The motion of the low-energy excitations satisfies a semiclassical transport equation solved consistently with the Maxwell equations for the electromagnetic field produced by spin and charge fluctuations. The long-wavelength limit of the self-sustained oscillations is analyzed as a function of the initial degree of polarization of the system, preset by a dc magnetic induction. ͓S0163-1829͑98͒01548-3͔

Comments

Published version may be found here: http://journals.aps.org/prb/

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