July 10, 2014Perovskites entice materials scientists with their ferroelectricity, ferromagnetism, catalytic activity, and oxygen-ion conductivity. Perovskites could be vastly improved by assembling them into thin films, but no one understood why thin films beat out bulk materials. Researchers working the U.S. Department of Energy′s Advanced Photon Source at Argonne National Laboratory used a groundbreaking approach to tease apart the thin-film structure and chemistry layer by layer and found that, instead of having a uniform distribution of elements, there were drastic differences in composition between the thin-film layers, an observation may help researchers design thin-film perovskites with enhanced activity and stability.
August 1 : Today
July 9, 2014Scientists using the U.S. Department of Energy′s Advanced Photon Source have demonstrated a conceptually new ultra-high-resolution inelastic x-ray scattering spectrometer able to provide valuable insight into how a material transforms from liquid to glass, one of the great mysteries of condensed matter physics. Understanding this process could shed new light on condensed matter theory and have practical applications such as the design of new drugs.
July 7, 2014Researchers working at the U.S. Department of Energy′s Advanced Photon Source at Argonne National Laboratory applied intense pressure to a compound of gadolinium and silicon, collecting information about a material well-suited to computer memory and magnetic sensors, and opening a new window into the complex lives of electrons under stress.
May 27, 2014Multiferroics are materials that exhibit a ferroelectric and magnetic order simultaneously. These orders have been the building blocks for technologically and economically important applications such as ferroelectric memory and spintronics, and present opportunities for efficient electric-field control of magnetism on ultrafast time scales. New research at the Universität Potsdam and at the U.S. Department of Energy Office of Science′s Advanced Photon Source is providing a better understanding of how these new properties come about and how best to harness them.
May 7, 2014Peptide amphiphiles are an emerging class of molecules that can be designed for novel therapies in advanced medicine. Researchers using high-brightness x-rays from the U.S. Department of Energy Office of Science′s Advanced Photon Source evaluated forces within the biological assemblies that can lead to cell breakdown and death, or to cell survival. These findings will be important in guiding future work to design biological materials for varied therapeutic use.
April 23, 2014Monochromatic x-ray topographic image for the (1 1 -2 4) reflection in grazing incidence showing a TED array along the <1 -1 0 0> direction . Three edge dislocations are schematically depicted in red. This image was obtained at beamline 1-BM of the APS.
April 9, 2014The demand for energy, especially cleaner energy, motivated work at the U.S. Department of Energy Office of Science′s Advanced Photon Source that characterized new porous metal-organic materials, which hold great promise for decreasing power-plant greenhouse gas emissions by removing carbon dioxide from post-combustion chamber gases.
January 7, 2014Kwang-Je Kim of the Advanced Photon Source has been named the recipient of the 2014 Robert R. Wilson Prize for Achievement in the Physics of Particle Accelerators,
December 18, 2013Katherine Harkay of the Accelerator Systems Division has been elected to Fellowship in the American Physical Society for “significant contributions to the understanding of the physics of electron cloud effects and the experimental investigation and understanding of collective effects, as well as for playing leading roles in development of photocathodes and superconducting undulator technology."
December 9, 2013Peter Chupas of the Advanced Photon Source has been named one of the Chicago “40 Under 40: 2013” by Crain’s Chicago Business.
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