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ARPES Overturns V2O3 Metal-to-Insulator Theory

Researchers report on angle-resolved photoemission spectroscopy (ARPES) measurements performed on the transition-metal oxide V2O3. The results overturn a decade-old theory about metal-to-insulator transitions in this material and provide a spectroscopic benchmark test for future models. Read more »PPT-icon-35 PDF-icon-35

NCAA Drives Formation of Designed Proteins

A noncanonical amino-acid (NCAA) complex has been found to drive the self-assembly of a computationally designed protein. Bpy-ala, which is “noncanonical” because it’s not among the 20 amino acids that occur naturally, has useful properties that could be used to generate novel photoactive proteins. Read more »

Grad Student Benefits from ALS, Brookhaven Collaboration

Stony Brook grad student Tiffany Victor flies to California several times a year to use infrared beams at the Advanced Light Source. Unlike the infrared microscope at Brookhaven National Laboratory, the extremely bright infrared light from the ALS’s synchrotron beamlines improves the image quality and resolution in order to study the interface between the plant and fungus. Read more »

Ptychography of a Bacterium’s Inner Compass

Magnetotactic bacteria (MTB) synthesize chains of magnetic nanocrystals (magnetosomes) that interact with the Earth’s magnetic field like an inner compass needle, simplifying their search for optimum environments. Ptychographic spectra of magnetosomes from a marine MTB provides insight into how these inner compasses form. Read more »

Andrea Jones, ALS Proposal Coordinator

Andi Jones joined the ALS User Services Office as proposal coordinator last April and has taken over the processing and tracking of General User, RAPIDD, and Approved Program proposals. She also maintains the ALS publications database and serves as a point of contact for users who have beamtime or proposal questions. Read more »

2016-17 ALS Doctoral Fellows

The ALS Doctoral Fellowship program allows early-career researchers to spend a year in residence at the ALS acquiring hands-on scientific training and developing professional skills to complement their doctoral research. This year’s program is one of the largest groups to date, with 21 fellows. Read more »

GE Aviation Delves into Advanced Materials at the ALS

Developing ceramic matrix composites (CMCs) to replace the metal alloys traditionally used in jet engines has been a goal for the aviation industry for decades. For more than a year, GE Aviation has used the tomography capabilities at ALS Beamline 8.3.2 to gain insight into their CMC materials, guiding their engineering and design efforts. Read more »PPT-icon-35

For Better Batteries, Open the Voltage Window

Electrochemical (battery) cells with aqueous electrolytes can be safe, inexpensive, and environmentally friendly, but they are limited by a narrow voltage window. X-ray absorption spectroscopy helps explain why an aqueous Na-ion system with Mn5O8 electrodes has a large voltage window and performs comparably to Li-ion batteries. Read more »

Testing the Limits of Superhard Rhenium/Tungsten Diboride

Superhard materials such as metal borides are in demand as structural and engineering compounds and for next-generation cutting tools. Researchers have now synthesized a “solid solution” of two different metal borides, demonstrating the accuracy of theoretical predictions and opening the door to more targeted tuning of desirable characteristics. Read more »

New ALS Scheduler Tool to Access Beamline Schedules

As part of the ongoing effort to provide users and staff improved tools to track their proposals, safety, and beam time, the ALS has rolled out the ALS Scheduler. For cycle 2017-1 and future cycles, ALS beamline schedules will be displayed through this new software tool designed to provide centralized access to all beamline schedules. Read more »