Switching in organic polymer films

In this paper we discuss threshold switching effects in thin films of polymethylmethacrylate on molybdenum, silver, copper, graphite, Nesa and Nesatron substrates, using counterelectrodes of pyrolytic graphite. The similarities to corresponding phenomena in multicomponent chalcogenide alloys point to inherently common mechanisms. Lateral variations in switching characteristics are discussed in terms of trap distribution statistics.