Nanowerk June 19, 2020
Learning that takes place in the brain is based on the gradual strengthening or weakening of the connections between synapses whose electronic conductance can be controlled electrically. A team of researchers in the US (MIT, Brookhaven National Laboratory) has developed a resistive switch which is an electrochemical device, made of tungsten trioxide (WO3) and works in a way similar to the charging and discharging of batteries. Just as conductivity can be changed in silicon by doping, they changed the resistance of the synapses by moving ions. Calcium, potassium, magnesium ions were used. They have demonstrated good repeatability and energy efficiency…read more. Open Access TECHNICAL ARTICLE
A new system could provide a faster, more reliable, and much more energy efficient approach to physical neural networks… Credit: The researchers