Properties of Injected Plasmas in Indium Antimonide

TLDR: In this paper, the authors measured the injection times of injected electron-hole pairs in p-type indium antimonide and pinching of the plasma was observed, showing a steep rise at voltages well below those required for brenl;down, indicating a large increase in carrier density before breakdown.

Abstract: Plasmas composed of injected electron-hole pairs in p-type indium antimonide were studied. The injection times were measured and pinching of the plasma was observed. The current-voltage curves show a steep rise at voltages well below those required for brenl;down, indicating a large increase in carrier density before breakdown. The Hall voltage measured as a function of current changed sign from that expected for hole transport to that expected for electron transport. Negative resistances were observed in the plasma in the presence of transverse magnetic fields. Longitudinal magnetic fields decreased the plasma density, probably because of an increased radial diffusion of the plasma to the surface. Coherent oscillations were observed on top of the pinch both with and without longitudinal fields, and their dependence on current and magnetic field is described. (auth)