Scientists have measured a subatomic phenomenon first predicted more than 60 years ago. This so-called van Vleck magnetism is the key to harnessing topological insulators--hybrid materials that are both conducting and insulating--and could lead to quantum computers, spintronics, and superior semiconductors.
An international team of researchers tracked nitrogen as soil bacteria pulled it from the air and released it as plant-friendly ammonium. This process--called biological nitrogen fixation--substantially promoted growth in certain grass crops, offering new strategies for eco-friendly farming.
Using a powerful microscope to watch multiple cycles of charging and discharging under real battery conditions, researchers have gained insight into the chemistry that clogs rechargeable lithium batteries in work appearing in the March issue of the journal Nano Letters.
Just as the Rosetta Stone has the same message in three different scripts giving scholars insights into ancient languages, so cerium-cobalt-indium5 is offering insights into the interplay between magnetism, superconductivity, and disorder in three classes of unconventional superconductors.
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Researchers from the University of Illinois at Urbana-Champaign (UIUC) are using supercomputing resources at the Argonne Leadership Computing Facility (ALCF), a DOE Office of Science User Facility, to shed light on the mysterious nature of high-temperature superconductors.
Desalination is an energy-intensive process, which concerns those wanting to expand its application. Now, a team of experimentalists led by the Department of Energy's Oak Ridge National Laboratory has demonstrated an energy-efficient desalination technology that uses a porous membrane made of strong, slim graphene--a carbon honeycomb one atom thick. The results are published in the March 23 advance online issue of Nature Nanotechnology.
A certain class of proteins has challenged researchers' conventional notion that proteins have a static and well-defined structure.
A team of researchers, led by Rensselaer Polytechnic Institute professor Yuri Lvov, has found an elegant explanation for the long-standing Fermi-Pasta-Ulam (FPU) problem, first proposed in 1953, investigated with one of the world's first digital computers, and now considered the foundation of experimental mathematics.
A team of researchers, including Rensselaer Polytechnic Institute professor Morgan Schaller, has used mathematical modeling to show that continental erosion over the last 40 million years has contributed to the success of diatoms, a group of tiny marine algae that plays a key role in the global carbon cycle. The research was published today in the Proceedings of the National Academy of Sciences.
Graphene, a strong, lightweight carbon honeycombed structure, only one atom thick, holds great promise for energy research and development. Recently scientists with the Fluid Interface Reactions, Structures, and Transport Energy Frontier Research Center, led by the US Department of Energy's Oak Ridge National Laboratory, revealed graphene can serve as a proton-selective permeable membrane, providing a new basis for streamlined and more efficient energy technologies such as improved fuel cells.
The Array of Things, The Internet of Things, ultimately, "smart" cities have to feature hundreds, maybe thousands, of strategically placed sensors. These devices would record everything from air pressure and temperature to microbial content. The newly developed Waggle platform is the system on a chip that will enable this to happen.
Scientists have captured the first real-time nanoscale images of lithium dendrite structures known to degrade lithium-ion batteries.
Natural gas powered solid oxide fuel cells, located at the point of use to produce electricity for facilities the size of big box stores, could provide economic and environmental benefits, with additional research, according to new study.
In collaboration with Australian researchers, Argonne National Laboratory's scientists are using decades of experience analyzing vehicle fuel injectors to study medical inhalers, hoping to unlock the secrets of the devices that are so well known to asthma sufferers everywhere.
Scientists at the Critical Materials Institute have developed a two-step recovery process that makes recycling rare-earth metals easier and more cost-effective.
Buildings are responsible for about 40 percent of the energy consumed in the United States. Studies indicate that advanced sensors and controls have the potential to reduce the energy consumption of buildings by 20-30 percent.
The new zinc-polyiodide redox flow battery uses an electrolyte that has more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid. It's high energy density, and resulting lower cost, make it ideal for large cities where space is at a premium.
A new electrolyte allows rechargeable batteries to operate well without growing dendrites, tiny pin-like fibers that short-circuit rechargeable batteries.
A group of researchers in Tunisia and Algeria show how fuzzy logic has helped them create an ideal photovoltaic system that obeys the supply-and-demand principle and its delicate balance. They describe this new sizing system of a solar array and a battery in a standalone photovoltaic system in The Journal of Renewable and Sustainable Energy.
Scientists searching for signs of elusive "dark photons" as an explanation for an anomaly in a groundbreaking physics experiment have nearly ruled out their role.
A research team led by the University of Chicago's Dmitri Talapin has demonstrated how semiconductors can be soldered and still deliver good electronic performance.
Scientists have used an X-ray laser at the Department of Energy's SLAC National Accelerator Laboratory to get the first glimpse of the transition state where two atoms begin to form a weak bond on the way to becoming a molecule.
University of Utah scientists captured enough data on crucial steps in a chemical reaction to accurately predict the structures of the most efficient catalysts, those that would speed the process with the least amount of unwanted byproducts. The new approach could help chemists design catalysts that are not just incrementally better, but entirely new.
Researchers working at the Department of Energy's SLAC National Accelerator Laboratory have captured the first X-ray portraits of living bacteria. This milestone, reported in the Feb. 11 issue of Nature Communications, is a first step toward possible X-ray explorations of the molecular machinery at work in viral infections, cell division, photosynthesis and other processes that are important to biology, human health and our environment.