21 May '13, 7pm

A Next-Gen Transistor Material Loses Its Luster

A Next-Gen Transistor Material Loses Its Luster

Image: IBM Vanadium Solution: Ionic liquid can be used to enhance electric fields close to materials. Here, a droplet sits on top of a device containing source and drain electrode contacts, a channel through which current can flow, and a gate electrode. Researchers at IBM have found a way to create a new kind of binary switch that can retain its state by adding or removing oxygen atoms from a thin film of metal oxide. The discovery, they say, could pave the way for circuits that act like neural connections in the human brain. However, the work also seems to contradict earlier experiments indicating that the oxide switch might someday make a near-ideal replacement for silicon transistors. The material in question, vanadium dioxide , exhibits strong interactions among its own electrons. This gives the metal oxide a rather peculiar property: It is one of the few known materia...

Full article: http://spectrum.ieee.org/semiconductors/materials/a-nextg...

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