n-Type silicon at 77 K : hot carrier noise and not generation recombination noise

Abstract
The experimental excess noise current in n-Si at 77 K is compared with the theoretical generation-recombination (GR) noise. The discrepancy between the theory and the experiment shows that the usual formalism describing the GR noise is not valid in that case. The observed noise is either hot carrier diffusion noise, eithe hot carrier GR noise, that is GR noise with electric field dependent parameters