Measurement of the free carrier Faraday effect in n-type germanium at microwave frequencies

Abstract

Measurements of the Faraday rotation and ellipticity on n-type (001) oriented germanium crystals at 24.9 GHz and at room temperature have been performed, using a crossed wave guide method. The influences of multiple reflections and of the surfaces on the Faraday effect have been analysed. These effects can be eliminated in a simple way. The rotation and ellipticity for the samples used were calculated, using the multi valley model for n-type germanium. The agreement between theory and experiment was found to be good.