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A digital platform that integrates a metasurface based on electronic varactors with an optical interrogation network based on photodiodes can be programmed by visible light to implement electromagnetic functions, including microwave cloaking, illusion and vortex beam generation.
This Review Article examines the development of spintronic devices for neuromorphic computing, exploring how magnetic tunnel junctions and magnetic textures can act as artificial neurons and synapses, as well as considering the challenges that exist in scaling up current systems.
This Review Article examines the development of physical unclonable functions, which exploit inherent randomness to give a physical entity a unique ‘fingerprint’ or trust anchor, considering the various potential applications of these devices and the security issues that they must confront.
An inexpensive and compact short-range radar, which is capable of beam steering and operates at 330–500 GHz, can be used to detect heartbeat-induced chest motions through a person’s clothes.
High-resolution doping patterns can be reversibly written in van der Waals heterostructures using a combination of an electron beam and a back-gate voltage.
Pillars of antiferromagnetic PtMn, grown on a heavy-metal layer, can be reversibly switched between different magnetic states by electric currents, illustrating the potential of silicon-compatible antiferromagnetic materials in the development of memory and computing devices.
By isolating one-dimensional tellurium nanowires in boron nitride nanotubes, the electronic properties of the atomic chains can be measured and the structures used to create field-effect transistors.
A black phosphorus/Al2O3/black phosphorus heterostructure can be used to create a tunnel field-effect transistor in which the tunnelling current is in the transverse direction with respect to the drive current, leading to abrupt switching and a negative differential resistance with a peak-to-valley ratio of more than 100 at room temperature.
The local deployment of 5G platforms for 5G-enabled healthcare in hospitals and clinics can provide a route for the development of digital healthcare technologies in rural Africa.
