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An electronic-skin compass, which is fabricated on 6-μm-thick polymeric foils and accommodates magnetic field sensors based on the anisotropic magnetoresistance effect, allows a person to orient with respect to Earth’s magnetic field and to manipulate objects in virtual reality. The cover shows a scanning electron microscopy image of the compass under a bending radius of 200 μm.
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.
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.