Title :
Bulk negative differential conductance in n-type germanium at low electric fields
Abstract :
Kalstalskii has recently reported a new current instability in n-type germanium at low fields and low temperatures. This letter shows that a theoretical calculation based on the equivalent intervalley transfer between [111] minima yields results that agree very well with the experimental observations. The treatment is based on Boltzmann´s equation. The drifted Maxwellian distribution function is assumed.
Keywords :
Acoustic scattering; Compressive stress; Distribution functions; Electron mobility; Germanium; Impurities; Lattices; Maxwell equations; Stability; Temperature distribution;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1970.7603
