Spin-transfer torque (STT) mechanisms in vertical and lateral spin valves and magnetization reversal/domain wall motion with spin-orbit torque (SOT) have opened up new possibilities of efficiently mimicking 'neural' and 'synaptic' functionalities with much lower area and energy consumption compared to CMOS implementations. In this paper, we review various STT/SOT devices that can provide a compact and area-efficient implementation of artificial neurons and synapses. We provide a device-circuit-system perspective and envision design of an All-Spin neuromorphic processor (with different degrees of bio-fidelity) that can be potentially appealing for ultra-low power cognitive applications.
|Original language||English (US)|
|Number of pages||11|
|Journal||IEEE Transactions on Circuits and Systems I: Regular Papers|
|State||Published - Dec 2016|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering