Using macromolecular crystallography at Beamline 8.3.1 at the ALS, Berkeley researchers discovered how CRISPR/Cas captures foreign DNA for the bacterial immune system. Read more »
Science Briefs
On the Road to ANG Vehicles with Increased Driving Ranges
An international team of researchers, using gas adsorption studies, in situ powder x-ray diffraction, and single-crystal x-ray diffraction, showed that there is a way to develop a new flexible metal–organic framework (MOF) material for enhanced natural gas storage on vehicles. Read more »
Discovery of Weyl Semimetals May Lead to Novel Future Spintronic Applications
A team of researchers using angle-resolved photoemission spectroscopy (ARPES) at ALS Beamline 10.0.1 found intriguing particles in a new phase of quantum matter: topological Weyl semimetals.
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Custom Organic Electronics Out of the Printer
Using in situ x-ray characterization and a custom-made slot-die coater at Beamline 7.3.3, the cross-linking of polymer molecules in the active layer of an organic solar cell during the printing process could be observed.
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What Goes Up, Must Come Down (and Sometimes Gets Stuck)
High-pressure experiments at Beamline 12.2.2 on ferropericlase—the presumed weakest mineral found in the Earth’s lower mantle—help explain why subducted slabs of Earth’s crust stall at a depth of around 1000 km (~625 miles). Read more »
Terra Sigillata: Evolution of Roman Ceramics Reflect Changes in Technology, Life
Ancient terra sigillata ceramics were the most famous and ubiquitous Roman tableware, yet when their manufacturing spread to other locations, some of the ceramics’ characteristics changed. Researchers from France and the ALS traced the changes.
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The Electronic Structure of a Two-Dimensional Pure Copper Oxide Lattice
All superconducting cuprates share a common structure: charge reservoirs stacked between layers of CuO2. An undoped version, including only C and O, is not available in nature. By growing epitaxial films with a pulsed-laser deposition facility, researchers stabilized a 2D version of CuO, which can be thought as composed by two CuO2 planes staggered and superposed.
Minding the Gap Makes for More Efficient Solar Cells
Using novel materials to develop thin, flexible, and more efficient photovoltaic cells is one of the hottest topics in current materials research. A class of transition metals undergoes a dramatic change that makes them ideal for solar energy applications. Read more »
New Light on a Famous Insulator: Photoinduced Polaronic Conduction in Anatase
Using angle-resolved photoemission spectroscopy (ARPES), researchers have shown that the number of conduction electrons in anatase, as well as their degree of correlation, can be patterned by exposure to UV light in a controllable and reversible way. Read more »
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