Memristors could be the enabling technology for a new generation of electronics, being both smaller and simpler in form than transistors, low-energy, and with the ability to retain data by ‘remembering’ the amount of charge that has passed through them — potentially resulting in computers that switch on and off instantly and never forget.
Materials research conducted at the University of Southampton, U.K., has demonstrated a new memristor technology that can store up to 128 discernible memory states per switch, almost four times more than previously reported.
The researchers tested several configurations of functional oxide materials — the core component that gives the memristor its ability to alter its resistance. Bilayer resistive random access memory aluminum oxide/titanium dioxide devices with up to 6.5 bits of information storage and excellent retention and power consumption performance were fabricated.
The research is published in the journal Scientific Reports.