Abstract
Pressure is applied locally, with a small round diamond point on the flat surface of germanium mesa diodes. The pressure dependence of the forward and reverse currents is interpreted in terms of a change of the energy gap by introducing a simplified pressure pattern. For the pressure dependence of the energy gap for 〈111〉 germanium is found ∂EG/∂P≈−9×10−6 eV kg−1 cm2.