Cyclotron Resonance in the Valence Band of Germanium under Uniaxial Stress

The inverse mass parameters, deformation potential constants and g -factor of the valence band of germanium are determined through a cyclotron resonance study. By means of 35 and 70 GHz microwave spectrometers, several quantum lines are observed with good resolution between 1.5 and 4.2°K under the application of uniaxial compression along particular crystal axes. Analyses of these quantum lines yield: A =-13.50± O .05, B =-8.80±0.09 and N =-35.20±0.23 in the unit of (\(²/2m₀\)); the shear deformation potential constants D u =3.14±0.20, D u ' =4.00±0.20 and the dilatational one D d V =-5.2 +1.0 -0.5 or +3.3 -1.0 +0.5 in the unit of (eV); while the g -value is found to be 7.8.