On: A Brain Built from Atomic Switches Can Learn

[trhway]

>Applying voltage to the devices pushes positively charged silver ions out of the silver sulfide and toward the silver cathode layer, where they are reduced to metallic silver. Atom-wide filaments of silver grow, eventually closing the gap between the metallic silver sides. As a result, the switch is on and current can flow. Reversing the current flow has the opposite effect: The silver bridges shrink, and the switch turns off.

makes me wonder if there is any potential as a non-volatile memory chip.

[aperrien → trhway]

I think that this is the same basic concept as a memristor; current flowing one way probes the state, enough current flowing the other way changes it.

[deepnotderp → trhway]

That's the operating principle for CBRAM memristors.