A. E. Dubinov, I. N. Kitayev, “Two-tone nonlinear electrostatic waves in the quantum electron–hole plasma of semiconductors”, Fizika i Tekhnika Poluprovodnikov, 2017, Volume 51, Issue 1,Pages <nobr>18

This article is cited in 14 papers

Electronic properties of semiconductors

Two-tone nonlinear electrostatic waves in the quantum electron–hole plasma of semiconductors

A. E. Dubinov^abc, I. N. Kitayev^abc

^a Federal State Unitary Enterprise "Russian Federal Nuclear Center — All-Russian Research Institute of Experimental Physics", Sarov, Nizhny Novgorod region
^b National Engineering Physics Institute "MEPhI", Moscow
^c Sarov State Institute of Physics and Technology

Abstract: Longitudinal electrostatic waves in the quantum electron–hole plasma of semiconductors are considered taking into account the degeneracy of electrons and holes and the exchange interaction. It is found in the framework of linear theory that the dispersion curve of longitudinal waves has two branches: plasmon and acoustic. An expression for the critical cutoff frequency for plasma oscillations and an expression for the speed of sound for acoustic vibrations are derived. It is shown that the plasma wave always exists in the form of a superposition of two components, characterized by different periods and wavelengths. Two nonlinear solutions are obtained within nonlinear theory: one in the form of a simple superposition of two tones and the other in the form of beats.

Received: 24.02.2015
Accepted: 28.04.2016

DOI: 10.21883/FTP.2017.01.43989.7871