Nanowires of the organometallic semiconductor CuTCNQ were grown from TCNQ vapor in 250 nm diameter vias of a Cu back end-of-line process. Corresponding prototypes of cross-point Cu/CuTCNQ nanowire/Al memories exhibited nonvolatile bistable conductive switching for several ten write-erase cycles with switching currents below 10 mu A and current densities 1000 times higher than for large-area devices. Scaling of memory elements was also investigated. (c) 2006 American Institute of Physics.
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