Researchers find topological phenomena at high, technologically relevant frequencies

A new study describes topological control capabilities in an acoustic system at high technologically relevant frequencies. This work has implications for applications such as 5G communications and quantum information processing.

Simply printing high-performance perovskite-based transistors

A research team develops high performing p-type transistor using perovskite. Solution-processed metal halide perovskite transistors can now be printed.

'Hot' spin quantum bits in silicon transistors

Quantum bits (qubits) are the smallest units of information in a quantum computer. Currently, one of the biggest challenges in developing this kind of powerful computer is scalability. A research group has now made a breakthrough in this area.

Scientists shave ‘hairs’ off nanocrystals to improve their electronic properties

A new study introduces a breakthrough in making nanocrystals function together electronically. The research may open the doors to future devices with new abilities.

New Fermi arcs could provide a new path for electronics

Newly discovered Fermi arcs that can be controlled through magnetism could be the future of electronics based on electron spins. During a recent investigation of the rare-earth monopnictide NdBi (neodymium-bismuth), researchers discovered a new type of Fermi arc that appeared at low temperatures when the material became antiferromagnetic, i.e., neighboring spins point in opposite directions.

Light derails electrons through graphene

Researchers have experimentally caused electrons to bend in bilayer graphene with the use of light. The way electrons flow in materials determine its electronic properties. For example, when a voltage is sustained across a conducting material, electrons start flowing, generating an electrical current. These electrons are often thought to flow in straight paths, moving along the electric field, much like a ball rolling down a hill. Yet these are not the only trajectories electrons can take: when a magnetic field is applied, the electrons no longer travel in straight paths along the electric field, but in fact, they bend. The bent electronic flows lead to transverse signals called 'Hall' responses.

Photonic technology enables real-time calculation of radio signal correlation

Researchers have developed a new analog photonic correlator that can be used to locate an object transmitting a radio signal. They demonstrated its ability to identify the location of a radio frequency transmitter, working faster than other methods. The device is considerably simpler than today's analog or digital correlators and uses off-the-shelf telecommunications components to process a wide range of radio frequency signals in cell phones, signal jammers, and more.