Memristor-based random access memory: The delayed switching effect could revolutionize memory design

Memristor´s on/off resistance can naturally store binary bits for non-volatile memories. In this work, we found that memristor´s another peculiar feature that the switching takes place with a time delay (we name it "the delayed switching") can be used to selectively address any desired memory cell in a crossbar array. The analysis shows this is a must-be in a memristor with a piecewise-linear 9-q curve. A "circuit model"-based experiment has verified the delayed switching feature. It is demonstrated that memristors can be packed at least twice as densely as semiconductors, achieving a significant breakthrough in storage density.