The electrical behavior of Au/SiOx/n-GaAs Schottky structures has been studied using a statistical approach. II has been concluded that the obtained unusual electrical behavior is connected mainly with different Fermi-level pinning position and lateral microinhomogeneities of the barrier height induced by different average thickness of the SiOx interlayer along the wafer. The results of cross-sectional transmission electron microscopy and the temperature dependence of the electrical characteristics confirm this conclusion. (C) 1998 Elsevier Science Ltd. All rights reserved.
Xiao Zhou, Cheng Chen, Pengfei Ou
Nicolas Grandjean, Jean-François Carlin, Raphaël Butté, Yi Wang