Gallery: Another step toward harnessing memristors

Memristors are a "thin titanium dioxide film held between two metal electrodes, and they act within circuitry as resistors. However, memristors have the added quality of remembering the resistance they had when current last flowed through them, hence the portmanteau name. Their resistance increases or decreases depending on the direction of the current," according to ZDNet UK's David Meyer.

"Representing a fourth basic passive circuit element, memristors have the ability to ‘remember’ the total electrical charge that passes through them," says Research associate John Paul