Heating the surface of a cuprate high-temperature superconductor allowed a team of researchers from Boston College and Brookhaven National Laboratory to modify the material into an insulating state, where they found an exotic liquid crystal phase, the team reports in the journal Nature Materials.
Using very sensitive magnetic probes, an international team of researchers has found surprising evidence that magnetism which emerges at the interfaces between non-magnetic oxide thin layers can be easily tuned by exerting tiny mechanical forces. This discovery provides a new and unexpected handle to control magnetism, thus enabling denser magnetic memory, and opens new and unexpected routes for developing novel oxide-based spintronic devices.
An international research team, co-led by a UC Riverside physicist, has discovered a new mechanism for ultra-efficient charge and energy flow in graphene, opening up opportunities for developing new types of light-harvesting devices. The researchers fabricated pristine graphene -- graphene with no impurities -- into different geometric shapes. They found that when light illuminated constricted areas, such as the region where a narrow ribbon connected two wide regions, they detected a large light-induced current, or photocurrent.
A new quantum algorithm has been implemented for quantum chemical calculations such as Full-CI on quantum computers without exponential/combinatorial explosion, giving exact solutions of Schroedinger Equations for atoms and molecules, for the first time.
2019 will be, as proclaimed by the UN, the 'International Year of the Periodic Table of Chemical Elements', in commemoration of the 150th anniversary of its creation. Researchers from the Faculty of Science of the University of Malaga (UMA) have recently revealed new properties of one of its key elements: sulfur.
Ferroelectric HfO2-based transistor and memory are expected to realize ultralow power electronics; however, their operation mechanism and scalability were not clarified yet.?Physical mechanism of low voltage operation of a transistor with ferroelectric-HfO2 gate insulator has been experimentally clarified. Scalability of ferroelectric memory with HfO2 tunnel-layer down to 20nm diameter has been theoretically elucidated.?The obtained results will contribute to enabling ultralow power IoT device and thus highly sophisticated network services.
MIT researchers have invented a new way to fabricate nanoscale 3D objects of nearly any shape. They can also pattern the objects with a variety of useful materials, including metals, semiconducting quantum dots, and DNA.
By trapping atoms in a lattice of light, researchers explore how unconventional metals conduct electricity, with an eye toward understanding high-temperature superconductors
Researchers at the National Institute of Information and Communications Technology (NICT) and Tokyo University of Agriculture and Technology (TUAT) demonstrate a vertical Ga2O3 metal-oxide-semiconductor field-effect transistor (MOSFET) that adopts an all-ion-implanted process for both n-type and p-type doping, paving the way for new generations of low-cost and highly-manufacturable Ga2O3 power electronic devices.
A terahertz laser designed by MIT researchers is the first to reach three key performance goals at once -- high constant power, tight beam pattern, and broad electric frequency tuning -- and could thus be valuable for a wide range of applications in chemical sensing and imaging.