Instability of beam driven electrostatic modes in semiconductor quantum magneto plasmas
| Autor: | A. Rasheed, Muhammad Jamil, F. Areeb |
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| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | Physics of Plasmas. 25:102110 |
| ISSN: | 1089-7674 1070-664X |
| DOI: | 10.1063/1.5046733 |
| Popis: | A couple of electrostatic modes, that is, electron-cyclotron waves (ECWs) and electron acoustic waves (EAWs), exciting from the source of an external electron beam in a solid state semiconductor plasma are studied. The semiconductor species are taken quantized. A mathematical model considering the quantum characteristics of recoil potential, exchange-correlation potential, and statistical degenerate pressure for quantized semiconductor species is applied. The instability of the system is analyzed numerically for GaAs. The dispersive properties of waves are studied on changing the key parameters, for example, the angle θ between propagation vector and applied magnetic field B0 parallel to the z-axis, the speed of the externally injected electron beam vb0 parallel to the propagation vector k, and the thermal temperature of the electron beam. The dispersion relation of the EAWs is derived as a special case of ECWs. |
| Databáze: | OpenAIRE |
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