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Excitons Dance the Two-Step in a 2D Material

Excitonic insulators are a rare form of macroscopic quantum state that can be realized at a high temperature, which can be useful for quantum information science. At the ALS, researchers found that in a 2D material, a novel two-step “folding” behavior in the ARPES data signals the existence of an intermediate exciton gas state. Read more »

Surface Engineering Boosts Water-Splitting Efficiency

Researchers modified the surface of an electrocatalyst to maximize its efficiency at splitting water. The optimized material is approximately 40 times more efficient than similar commercial electrocatalysts and could help make the production of clean hydrogen fuel more sustainable and economical. Read more »PPT-icon-35 PDF-icon-35

Congratulations to Our 2023 Retirees

Gary Giangrasso, David Malone, and Troy Stevens Sr. are retiring after a combined 94.25 years of service. Thank you all for your contributions to the ALS, and congratulations on your retirement! Read more »

Chiral Twists and Turns Lead Way to New Materials

Researchers found that, in crystals with structural chirality (left- or right-handedness), tuning the electronic behavior reveals hidden chiral phases and singularities. The results provide a new way to predict, test, and manipulate novel materials that exhibit desirable properties for next-generation electronic and spintronic devices. Read more »PPT-icon-35 PDF-icon-35

New Pathway for SO2 Breakup Sheds Light on Earth’s Oxygenation

While calibrating a new scientific apparatus at the ALS, researchers discovered that ultraviolet light can break up sulfur dioxide (SO2) in a new way, with molecular oxygen (O2) as an unexpected product. The discovery sheds light on Earth’s Great Oxygenation Event 2.4 billion years ago, when atmospheric oxygen levels first began to rise. Read more »

New Option for Preferred Name in ALSHub

Users and staff may now list their preferred name in addition to their legal name when registering in ALSHub. The preferred name will display on the ALSHub Dashboard, proposal, scheduler, ESAF, and in User Office Communications. Read more »

Vestiges of the Early Solar System in Ryugu Asteroid

Samples returned to Earth from the asteroid Ryugu revealed that the building blocks of life formed 4.6 billion years ago in the extreme cold of space, followed by reaction with water. The dark, coal-like organic matter in the carbonaceous asteroid could have contributed to the formation of habitable planetary environments. Read more »PPT-icon-35 PDF-icon-35

Three SCGSR Awardees to Conduct Research at the ALS (May 2023)

The Office of Science Graduate Student Research (SCGSR) program will provide Alaina Hartnett (Harvard University), Mostafa Nassr (UT Austin), and Sreevishnu Oruganti (UIUC) with supplemental awards to conduct research at the ALS in areas that address scientific challenges central to the Office of Science mission. Read more »