On May 7, a team from NASA Ames Research Center visited Berkeley Lab. Dimitri Argyriou and Ashley White gave them a tour of the ALS, where they learned about heat shield work in support of the Artemis II crewed lunar flyby mission and other space-related research at the ALS. Read more »
All News & Updates
2024 #LightSourceSelfieDay
To celebrate the 20th birthday of Lightsources.org, people working at synchrotron light sources were invited to post a selfie at a light source on social media on May 20th with the hashtag #LightSourceSelfieDay. A number of people from the ALS joined in. Read more »
A Novel Staircase Pattern in Spin-Stripe Periodicity
Striped patterns of spins in a magnetic thin film were found to evolve under an applied magnetic field in steps reminiscent of a structure known as the “Devil’s Staircase.” Such studies are valuable for understanding competing interactions at the atomic level for applications such as magnetic sensors and spintronic devices. Read more »
A Cleaner Way to Produce Ammonia
A cavity made from linked rare-earth metals, such as zirconium and titanium, can convert abundant molecular nitrogen (N2) into useful nitrogen compounds, including ammonia or tris(silyl)amines, at room temperature. Read more »
Direct Observation of Room-Temperature Magnetic Skyrmion Motion Driven by Ultra-Low Current Density in Van Der Waals Ferromagnets
Researchers demonstrate current-driven magnetic skyrmion motion in van der Waals ferromagnets at room temperature. The skyrmion motion presents ultra-low critical current density to activate their dynamics, thanks to minimized defects in the van der Waals gap. The findings will provide a new platform for spintronics application in the future. Read more »
How Bulky Molecules Improve Next-Generation Solar Cells
Adding “bulky” organic molecules earlier in solar-film synthesis slows crystal growth, leading to the formation of a protective surface layer that improves durability and efficiency. These next-gen materials could revolutionize solar-cell technology, offering increased efficiency, lower cost, lighter weight, and flexible solar modules. Read more »
Surprise Mineral Precursor Found in Coral Skeletons and Mollusk Shells
Researchers studied samples from corals, mollusks, and sea urchins, at edges where mineral precursors start to form the new shell or skeleton. There, they found a surprise: corals and mollusks produced a mineral precursor that had never been observed before in living organisms or rocks, and had only recently been created synthetically. Read more »
Probing the Liquid/Vapor Interface of a Tunable Solvent
Despite the ready tunability and industrial promise of deep eutectic solvents (DESs), there have been few x-ray spectroscopy studies at their liquid/vapor interfaces—which is relevant for their use in applications such as greenhouse-gas capture. Here, researchers probed the liquid/vapor interface of a benchmark DES using complementary spectroscopies. Read more »
Aluminothermic reduction of CeO2: Mechanism of an economical route to aluminum–cerium alloys
In this study, we demonstrate a novel approach to producing Al–Ce alloys by reducing CeO2 in liquid aluminum at 95% reduction efficiency. This work provides the basis of an economic route to producing high-strength Al–Ce alloys with enhanced dispersion strengthening from embedded Al2O3 particles. Read more »
DOE Postdoctoral Recognition Award for Rebecca Hamlyn
The Department of Energy Hydrogen and Fuel Cell Technologies Office has recognized Hamlyn for her project: Approaching the Complex Composite Electrode Interface with operando AP-XPS. Read more »
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