In pursuit of the spin transistor and alternative memory technologies.
Volume 1 Issue 11, November 2018
News & Views
Field-free switching of a perpendicular magnetic tunnel junction through the interplay of spin–orbit and spin-transfer torques
The interplay between spin–orbit and spin-transfer torques can be used to develop a low-power route to magnetization switching of perpendicular magnetic tunnel junctions without an external magnetic field.
Electronic-skin compasses for geomagnetic field-driven artificial magnetoreception and interactive electronics
Magnetic field sensors, which are based on the anisotropic magnetoresistance effect and arranged in a Wheatstone bridge configuration, can provide an artificial magnetoreception that allows a person to orientate in an outdoor setting and manipulate objects in virtual reality.
A pH sensor made from a flexible charge-coupled device, and integrated with a temperature sensor, can be used to monitor the sweat pH and skin temperature of a person in real time.
Spintronic devices, which exploit the spin of electrons for information processing and storage, are a key emerging technology in electronics. Supriyo Datta explains how emulating optical phenomena inspired his prediction of the spin transistor.