A theoretical analysis of resonant scattering of free carriers by electron-hole droplets in germanium

Abstract
The longitudinal magnetoconductivity of electrons in the presence of electron-hole droplets is calculated using the Born approximation. The magnetoconductivity has an oscillatory structure with period: Delta B1/2= pi /2a((mch(cross))/(2mze))1/2 where mc and mz are the masses for cyclotron motion and for motion parallel to the magnetic field respectively. This analysis applied to recent experimental data on Ge at 2K gives a drop radius of 1.1 mu m.