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ALSNews Vol. 447

April 26, 2023

Probing Walls between Electrically Polarized Domains

Researchers used infrared light to investigate the properties of the domain walls that separate electrically polarized (ferroelectric) regions in a rare-earth ferrite material. An understanding of domain-wall behavior is relevant to the development of advanced logic and memory applications for ultralow-power digital devices. Read more »PPT-icon-35 PDF-icon-35

Spiraling Beams Differentiate Antiferromagnetic States

Using spiraling x-ray beams, researchers differentiated between energetically equivalent (“degenerate”) states in an antiferromagnetic lattice. The work shows the potential of these beams to probe properties that would otherwise be inaccessible, to better understand phenomena of fundamental interest and for applications such as spintronics. Read more »PPT-icon-35 PDF-icon-35

Increasing the Energy Density of Hybrid Supercapacitor Electrodes

Hybrid supercapacitors (HSCs) integrate the merits of batteries with those of supercapacitors. However, the fraction of active material in HSC electrodes has remained too low for commercial requirements. Now, researchers have found a clever way to increase the active-mass ratio to achieve dramatic improvements in key measures. Read more »

Nicotine Protonation in Simulated Vaping Aerosols

To better understand how e-cigarette additives alter nicotine chemistry and users’ perceptions of vaping, researchers used x-ray spectroscopy technology at the Advanced Light Source to analyze the acid-base equilibria of additive-enhanced nicotine in simulated vaping aerosols. Read more »

Kristin Carrillo, Senior Material Specialist

Kristin Carrillo’s many tasks around the ALS may be a divergence from her degree in psychology and her previous life as a softball player, but the connecting thread is the relationships she’s developed with the people around her. Find out more about her work as a material specialist and how she supports the scientific mission of the ALS. Read more »

Call for 2022 and 2023 Publications

All publications resulting from work done in whole, or in part, at the ALS must be recorded by the User Office for the Department of Energy (DOE). Please help ensure our records are complete by reporting your ALS publications, especially those published in 2022 and 2023. Read more »