Study of Upper Hybrid Waves Instability in Collisional Magneto Gallium Antimonide (GaSb) Semiconducting Plasma System
摘要
The effect of electron-phonon and hole-phonon collisions on upper hybrid waves (UHWs) instability instigated by an external electron beam in a magneto GaSb semiconducting plasma system has been studied. Quantum hydrodynamic (QHD) model has been used to derive the dispersion relation considering collision term and various quantum corrections like Bohmian force, quantum statistical pressure and exchange correlation potential. The influence of collisions on growth rate has been studied and it has been found that growth rate decreases non-linearly with the inclusion of collision term. The influence of propagation angle and beam streaming speed on the growth rate and phase speed of UHWs has also been studied.