UCSB physicists open the door to the first direct measurement of Berry curvature in solid matter.
Novel approach utilizes high mobility two-dimensional electron gas, boosting thermoelectric conversion efficiency.
A discovery by an international team of researchers from Princeton University, the Georgia Institute of Technology and Humboldt University in Berlin points the way to more widespread use of an advanced technology generally known as organic electronics.
Germanium was the material of choice in the early history of electronic devices, and due to its high charge carrier mobility, it's making a comeback. It's generally grown on expensive single-crystal substrates, adding another challenge to making it sustainably viable for most applications. To address this aspect, researchers demonstrate an epitaxy method that incorporates van der Waals' forces to grow germanium on mica. They discuss their work in the Journal of Applied Physics.
A team of Hokkaido University researchers has developed a novel material synthesis method called proton-driven ion introduction (PDII) which utilizes a phenomenon similar to 'ion billiards.' The new method could pave the way for creating numerous new materials, thus drastically advancing materials sciences.
Red-sensitive, blue-sensitive and green-sensitive colour sensors stacked on top of each other instead of being lined up in a mosaic pattern -- this principle could allow image sensors with unprecedented resolution and sensitivity to light to be created. However, up to now, the reality hasn't quite met expectations. Researchers from Empa and ETH Zurich have now developed a sensor prototype that absorbs light almost optimally -- and which is also cheap to produce.
For the first time, physicists at MIT and Princeton University have developed a technique to visualize the behavior of electrons beneath a material's surface.
Artificial atoms are a staple of quantum optics experiments. Physicists closely investigate these systems recently: they turned a single artificial atom into a laser, learned to control single photon. This paper reports the unusual wave mixing effects on a single artificial atom in the gigahertz frequency range. The physicists point out that the observed effect could find application in quantum computing.
The US Department of Energy's Ames Laboratory has discovered and described the existence of a unique disordered electron spin state in a metal that may provide a unique pathway to finding and studying frustrated magnets. Their unique properties are of interest in the development of quantum computing and high-temperature superconductivity.
Physicists at Aalto University have made a breakthrough in revising methods largely discarded 15 years ago. They have discovered a microscopic mechanism that will allow gallium nitride semiconductors to be used in electronic devices that distribute large amounts of electric power.