Collective electromagnetic mode in layered conductors

Abstract

The transverse zero-sound wave in a one-component charged Fermi liquid with quasi-two-dimensional electron energy spectrum is considered in the framework of the Landau theory. In contrast to conventional metals, the electromagnetic wave propagation in such media along the weak conductivity direction is possible even for low intensities of the Fermi-liquid interaction. The field distribution in the sample under unilateral excitation is determined, the wave impedance is calculated, and the possibility of observing the effect in the pulse mode is considered.

High-frequency longitudinal oscillations of the quasi-two-dimensional electron liquid

“…The gas approximation does not provide for propagation of the spin waves in nonmagnetic metals, predicted by Silin [8], as well as for a series of Fermi liquid effects. Spin waves and transverse electromagnetic waves in the Fermi liquid have been studied in detail not only in metals (see, for example, the monograph [9,10]) but also in low-dimensional conductors [11][12][13][14][15][16][17].…”