Microwave Faraday effect in n-type germanium

Abstract

The Faraday rotation, ellipticity and the accompanying magneto-absorption were determined from measurements with the crossed wave guide coupler device, at room temperature, at 24.9 GHz. The complex conductivity tensor elements of n-type germanium were deduced from this complete Faraday effect, with the magnetic induction B parallel to the [001] direction of the crystal. The effective mass could be determined from these experiments. Moreover, the off-diagonal magnetoconductivity was examined. The polarization anisotropy of the Faraday effect was measured with B // [011]. Results of these measurements on the rotation indicate an almost isotropic relaxation time at room temperature.