Friedel-Type Oscillations in the Problem of Skin Effect in Degenerate Collisionless Plasma

TL;DR

This paper demonstrates that Friedel-type oscillations occur during the skin effect in degenerate collisionless plasma, driven by the sharp Fermi surface, not quantum effects, revealing a new aspect of plasma behavior.

Contribution

It introduces the concept that Friedel oscillations can arise in classical degenerate plasma due to Fermi surface features, not solely from quantum effects.

Findings

Friedel oscillations accompany skin effect in degenerate plasma.

The oscillations are caused by the sharp Fermi surface, not quantum properties.

This phenomenon occurs under anomalous skin effect conditions.

Abstract

It is shown that a Friedel type oscillations accompany skin effect in degenerate plasma of a metal. It was learnt earlier that Friedel oscillations take place under charge screening in quantum plasma. However the nature of Friedel oscillations is not in the quantum character of the plasma, but in the features of degenerate Fermi distribution, namely, in its sharp transformation into zero directly just the other side of the Fermi surface. This circumstance leads to the Frieldel-type oscillations under anomalous skin effect.