MONTE-CARLO ANALYSIS OF NOISE SPECTRA IN SCHOTTKY-BARRIER DIODES

We present a microscopic analysis of current fluctuations in a GaAs Sc hottky-barrier diode under forward-bias conditions. The calculations a re performed by employing a one-dimensional Poisson solver coupled sel f-consistently with an ensemble Monte Carlo simulator. Results support and complement previous findings of M. Trippe, G. Bosman, and A. van der Ziel [IEEE Trans. Microwave Theory Tech. MTT-34, 1183 (1986)] base d on phenomenological models. In particular, the coupling between fluc tuations in carrier velocity and self-consistent field is found to be essential in determining the noise spectra as a function of applied vo ltages.