Dating from May 2008, this NPR story was done shortly after the discovery by Stan Williams and HP Labs of a memristive material. From the synopsis:
“The possibility of such a circuit element, known as the “memristor,” was first described in 1971, but no one was able to find a device with the properties of that [...]
The Memristive switch:
“The team conducted its experiments by building a nanoscale memristor switch – at 50 nanometers by 50 nanometers, it is the world’s smallest – that contained a layer of titanium dioxide (a chemical commonly used in both sunscreen and white paint) between two nanowires. As its name implies, titanium dioxide typically comprises [...]
What is a memristor? Memristors are basically a fourth class of electrical circuit, joining the resistor, the capacitor, and the inductor, that exhibit their unique properties primarily within the nanoscale. Theoretically, Memristors, a concatenation of “memory resistors”, are a type of passive circuit elements that maintain a relationship between the time integrals of current and [...]
The memristor abstract can be found [ here ]. HP Labs has finally created a working model of a Memristor. Kudos!
