In the last year since ALS-U received approval of mission need (CD-0) from DOE, we’ve made a lot of progress. I’d like to share some updates with you as well as offer opportunities for our users to engage in the next phases of the project. Read more »
ALSNews Vol. 387
September 27, 2017
Researchers have established that a particularly stable form of WTe2 is a two-dimensional topological insulator, confirming recent predictions. The findings should provide new opportunities for fundamental studies of topological phenomena and for next-generation spintronic applications.
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Photoemission electron microscopy (PEEM) experiments have demonstrated that the circulation direction of a magnetic vortex can be switched by the application of an electric field, opening the door to digital devices with more streamlined system designs, improved performance, and greater energy efficiency.
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Copper oxides are important for superconductivity applications but are difficult to understand due to complex charge, spin, and orbital interactions. Now, studies at the ALS have found such a system in which observations of effective electron mass are at odds with state-of-the-art electronic-structure calculations. Read more »
Genetic analyses and infrared studies have found that archaea, a type of microbe commonly found in extreme environments, are also found on human skin. The results suggest that an increase in archaea is linked to reduced skin moisture and that they are most abundant in subjects younger than 12 and older than 60. Read more »
Carolyn Larabell, Director of the National Center for X-Ray Tomography (NCXT), centered around ALS Beamline 2.1, has been selected by the ALS Users’ Executive Committee to receive the 2017 David A. Shirley Award for Outstanding Scientific Achievement at the ALS. Read more »
Earlier this month, Berkeley Lab and SLAC hosted the 7th International Conference on Hard X-Ray Photoelectron Spectroscopy (HAXPES). This biennial meeting has grown from a small workshop held at ESRF in 2003 with about 50 participants, to a truly international event, which this year attracted 150 participants from 20 countries. Read more »
Guillaume Freychet is a postdoctoral fellow at ALS Beamlines 7.3.3 and 188.8.131.52, the small- and wide-angle x-ray scattering (SAXS/WAXS /GISAXS) beamlines. His research is focused on the development of algorithms and data treatments for various scattering techniques. Read more »
The report from the January 2017 workshop, “Solving Scientific Challenges with Coherent Soft X-Rays,” is now available for download. The report details scientific challenges that ALS-U will address early on and identifies the instruments and tools essential for taking full advantage of ALS-U’s capabilities. Read more »