High-Frequency Electrostatic SW at the Boundary between Quantum Plasma and Metal

Abstract

It is shown that high-frequency electrostatic surface waves (SW) could be propagated at right angles to an external magnetic field on the boundary between metal and gaseous plasma due to a finite pressure electron gas in quantum plasma by using the quantum hydrodynamic QHD equations. The dispersion relation for those surface waves in uniform electron plasma is derived under strong external magnetic field. We have shown that the electrostatic surface waves exist also in the frequency for the ranges where electromagnetic SW is impossible. The surface plasma modes are numerically evaluated for the specific case of gold metallic plasma at room temperature. It has been found that dispersion relation of surface modes depends significantly on these quantum effects (Bohm potential and statistical) and should be into account in the case of magnetized or unmagnetized plasma.

Propagation of surface waves in semi-bounded quantum collisional plasmas with electron exchange-correlation effects

“…Quantum plasmas have a wide range of research area in high-density astrophysical systems such as in the interior of Jupiter, white dwarfs, highdensity neutron stars, and in miniature semiconductor devices [2,3]. Meanwhile, quantum plasmas are also widely studied in high-density laser plasma [4], ultra-small electronic equipment [5], and in dusty plasmas [6].…”

Surface electromagnetic wave equations in a warm magnetized quantum plasma

“…26 In addition, the propagation of surface waves in a magnetized quantum plasma has been a topic of important research. Many physicists [27][28][29][30][31] have published relevant papers about it based on various models. The dispersion properties of a transverse electric (TE) surface waves propagating along the interface between a relativistic (nonrelativistic) quantum plasma system and vacuum are studied 32,33 by using the QHD model, and it is found that the quantum effects play a crucial role to facilitate the propagation of TE surface waves.…”