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Antiferromagnetism of the IrMn layer in Pt/IrMn/CoFeB/MgO/CoFeB three-terminal magnetic tunnel junctions can be electrically detected using tunnelling magnetoresistance and controlled by a spin–orbit torque generated by a 0.8 ns current pulse applied across the heavy-metal platinum layer.
Arrays of thin-film transistors can be fabricated on the 5-inch wafer scale using solution-based processing of molybdenum disulfide and sodium-embedded alumina inks for the semiconductor and gate dielectric, respectively, yielding devices with room-temperature mobilities of up to 80 cm2 V−1 s−1.
An elastomer–semiconductor–elastomer stack structure can allow an intrinsically brittle n-type organic semiconductor to be stretched by 50% and used to make fully stretchable complementary electronics.
A parallel in-memory wireless computing scheme that is based on memristive crossbar arrays can provide energy-efficient wireless data transmission using radio, acoustic and light waves.
Ferroelectric zirconium-doped hafnia (Hf0.5Zr0.5O2) can be used to create negative differential capacitance behaviour in capacitors and transistor gate stacks, providing reliable enhancements in switching performance.
A microelectromechanical cochlea, which consists of a bio-inspired acoustic sensor with a thermo-mechanical feedback mechanism, exhibits active auditory sensing, allowing the sensor to adapt its properties to different acoustic environments.
An organic electrochemical transistor with a vertical traverse architecture and a crystalline–amorphous channel that can be selectively doped by ions can operate as a volatile receptor and a non-volatile synapse.
Incorporation of the alkali metal salt caesium chloride into a hole injection layer can improve the efficiency of charge carrier injection and induce the growth of quasi-two-dimensional perovskite layers with improved emissive properties, resulting in blue perovskite light-emitting diodes with an external quantum efficiency of up to 16.1%.
Soft, conductive fibres that can be used to make electronic textiles can be fabricated at ambient pressure and temperature using a supramolecular-network-structured solution via a spontaneous phase separation technique that mimics spider silk formation.
Freestanding, out-of-plane structures made of stretchable conductors can be printed using an emulsion-based ink that has the viscoelasticity to be extruded into three-dimensional geometries and supporting its own shape.
A spoof surface plasmon polariton platform can be used to create a surface plasmonic neural network with programmable weights and activation functions.
Oxide-based solid-state protonic electrochemical transistors that have symmetric operation and are compatible with CMOS technology can be used to create crossbar arrays for deep learning applications.
A millimetre-wave dual-rail resonator that is incorporated into a suspended lithium niobate resonator can provide efficient electromechanical transduction in the sub-terahertz regime.
The Curie temperature of Fe5+xGeTe2 thin films can be modulated from 260 to 380 K via iron doping, allowing the two-dimensional material to be used to create planar spiral inductors and low-pass Butterworth filters.
Magnetic meta-atoms made from lanthanum-doped barium hexaferrite can be used to create self-biased non-reciprocal metasurfaces capable of unidirectional transmission, non-reciprocal beam steering, non-reciprocal beam focusing and non-reciprocal holography.
An organogel that is based on poly(vinyl alcohol)–sodium borate and contains a percolating conductive network of silver particles and liquid metal microdroplets exhibits spontaneous mechanical and electrical self-healing, as well as an electrical conductivity of 7 × 104 S m−1.
Magnetic hysteresis in multiferroic heterostructures formed from the two-dimensional magnetic insulator chromium germanium telluride and a thin ferroelectric polymer can be electrically controlled with voltages of around 5 V.
Low-loss superconducting aluminium cables and on-chip impedance transformers can be used to link qubit modules and create superconducting quantum computing networks with high-fidelity intermodule state transfer.
Wireless ingestible microdevices can be tracked through the gastrointestinal tract of large animals in real time and with millimetre-scale spatial resolution by generating three-dimensional magnetic field gradients in the gastrointestinal field-of-view using high-efficiency planar electromagnetic coils, which encode each spatial point with a distinct magnetic field magnitude.