Die Eigenschaften des leitfähigen Durchschlagkanals und sein Einfluß auf den bistabilen Schalteffekt in Cu₂O

Abstract

The current-voltage-characteristics and the temperature dependence of the thermopower and of the resistivity are measured on Cu,O bistable switching elenients in the lowresistance state. The behaviour of the low-resistance state is essentially determined by narrowings of a quasi-nietallic copper filament. The narrowings result from the contact of copper particles inside the Cu,O matrix. The behaviour of return switching into the highresistance state may be deduced from the structure of the filaments. The statistical fluctuations of the switching parameters are explained by the properties of the onswitching and off-switching process.