Two-tone nonlinear electrostatic waves in the quantum electron–hole plasma of semiconductors
- Russian Federal Nuclear Center–All-Russia Scientific and Research Institute of Experimental Physics (RFNC–VNIIEF) (Russian Federation)
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.
- OSTI ID:
- 22649634
- Journal Information:
- Semiconductors, Journal Name: Semiconductors Journal Issue: 1 Vol. 51; ISSN SMICES; ISSN 1063-7826
- Country of Publication:
- United States
- Language:
- English
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