We examine theoretically charge carrier transport across a Si/CaF2 layered
heterostructure by using an equivalent lumped-element circuit. We consider
a structure has been precharged by a negative pulse. The resulting charge a
ccumulation produces a nonmonotonic current-voltage (I-V) characteristic du
ring a subsequent positive voltage sweep. We examine the dependence of the
I-V characteristic on the magnitude and duration of the precharging bias pu
lse. (C) 2001 American Institute of Physics.