GeTeSingle Bond signGaAs tunnel junction: A negative-resistance schottky-type barrier

Tunnel junctions are fabricated by evaporating GeTe on GaAs substrates. The current-voltage characteristics are similar to those in a Schottky barrier, except for the existence of a negative-resistance region. A simple model which predicts such behavior is analyzed to interpret the experimental results. © 1969 The American Institute of Physics.