Researchers at MPI-CPfS have shown, through muon implantation experiments, that in Sr2RuO4 the onset of superconductivity causes spontaneous electrical currents to flow. They did this by showing that the onset of these currents splits from the main superconducting transition under uniaxial stress, which proves that it is a distinct transition, not a measurement artefact.
An interdisciplinary, multinational research team presents a new class of chemical compounds that can be reversibly oxidized and reduced. The compounds known as pyrazinacenes are simple, stable compounds that consist of a series of connected nitrogen-containing carbon rings. They are suitable for applications in electrochemistry or synthesis, as the researchers describe in the science journal
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IMAGE: Artistic depiction of XFEL measurement with neon gas. The inherent delay between the emission of photoelectrons and Auger electrons leads to a characteristic ellipse in the analyzed data. In principle,. view more
Credit: (Image by Daniel Haynes and Jörg Harms/Max Planck Institute for the Structure and Dynamics of Matter.)
Breakthrough greatly enhances the ultrafast resolution achievable with X-ray free-electron lasers.
A large international team of scientists from various research organizations, including the U.S. Department of Energy s (DOE) Argonne National Laboratory, has developed a method that dramatically improves the already ultrafast time resolution achievable with X-ray free-electron lasers (XFELs). It could lead to breakthroughs on how to design new materials and more efficient chemical processes.
Exotic Metal Found to Exhibit Giant Hall Effect Without any Magnetic Field
Written by AZoMFeb 23 2021
A magnetic field can deflect an electric current. In the case of conducting materials, this results in what is called the Hall effect, which is usually used to quantify magnetic fields.
The material behaves as if magnetic monopoles were present. Image Credit: TU Wien.
Scientists at TU Wien, working with researchers from the Paul Scherrer Institute (Switzerland), McMaster University (Canada) and Rice University (United States), have now achieved a fascinating discovery: an exotic metal composed of cerium, palladium and bismuth was investigated and the material was found to produce a giant Hall effect, in the complete absence of any magnetic field.
Electric current is deflected by a magnetic field - this leads to the so-called Hall effect. A surprising discovery has now been made at TU Wien: an exotic metal was examined and a giant Hall effect was found to be produced by the material, in the total absence of any magnetic field.