Physicists have constructed a two-dimensional spin transistor, in which spin currents were generated by an electric current through graphene. A monolayer of a transition metal dichalcogenide (TMD) was placed on top of graphene to induce charge-to-spin conversion in the graphene.
Read moreSuggesting an unconventional way to manipulate the properties of 2D materials in the presence of a Bose-Einstein condensate, and an alternative strategy to design high-temperature superconductors.
Read moreResearchers have devised a new method — called image charge detection — to detect electrons' transitions to quantum states. Electrons can serve as quantum bits, the smallest unit of quantum information; these bits are foundational to larger computational systems. Quantum computers may be used to understand the mechanism of superconductivity, cryptography, artificial intelligence, among other applications.
Read moreSemiconductors — and our mastery of them — have enabled us to develop the technology that underpins our modern society. These devices are responsible for a wide range of electronics, including circuit boards, computer chips and sensors.
Read moreAcoustics is a missing dimension in silicon chips because acoustics can complete specific tasks that are difficult to do with electronics and optics alone. For the first time researchers have added this dimension to the standard silicon photonics platform. The concept combines the communication and bandwidth offered by light with the selective processing of sound waves.
Read moreThe characterization of complex noise in quantum computers is a critical step toward making the systems more precise.
Read moreLocal thermal perturbations of spins in a solid can convert heat to energy even in a paramagnetic material — where spins weren't thought to correlate long enough to do so. This effect, which the researchers call 'paramagnon drag thermopower,' converts a temperature difference into an electrical voltage.
Read more