Researchers demonstrated, via x-ray absorption spectroscopy, that a molecule’s spin state can be reversibly switched at constant room temperature by magnetism. The results represent a major step toward the goal of programmable, nanoscale molecular electronics for high-speed, low-power, logic and memory applications. Read more »
A ferromagnetic thin film on a piezoelectric substrate offers a way to control magnetization in ultralow-power devices by relying on coupling between the piezoelectric and ferromagnetic components. At the ALS, researchers were able to image the electrically induced magnetic behavior and correlate it with the piezo-strain driving it. Read more »
The spontaneous formation of chiral structures from achiral molecules could shed light on the origin of biological homochirality—how one type of chirality dominated the other in certain biological molecules. Here, resonant soft x-ray scattering (RSoXS) has been used to explore helical phases that emerge from achiral asymmetric dimers. Read more »
Researchers discovered an innovative way to independently control two optical responses in a single-material system by utilizing the material’s phase diagram. This unique combination of material, methods, and results could lead to a paradigm shift in the design of metamaterial devices that manipulate light.
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Electronic vortex structures have been found to emerge from engineered samples of alternating complex-oxide layers. Resonant soft x-ray diffraction (RSXD) studies using circularly polarized x-rays revealed the vortices’ left- and right-handedness. The intriguing results open the door to electrically controllable chiral devices. Read more »
TE Connectivity used ALS microtomography capabilities to optimize the material and manufacturing parameters of their conductive plastics to impart good electrical conductivity. Conductive plastics with good electrical properties offer processing and cost benefits over metal alternatives, with applications ranging from automotive to data communications. Read more »
The electronic structure of a stacked 2D material was tuned by in situ electron doping, resulting in a large increase in the splitting of two valence bands. Stacked 2D materials possess an array of tunable properties that are expected to be important for future applications in electronics and optics.
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Parrotfish chew on coral, producing hundreds of pounds of sand each year. Mapping the microstructure of parrotfish teeth, scientists found bundles of crystals interwoven like chain mail. The results provide a blueprint for creating ultra-durable materials for mechanical components that undergo repetitive contact, movement, and abrasion. Read more »
Using the new MAESTRO platform at the ALS, scientists found that the exotic behavior of electrons in the 2D semiconductor, WS2, may be highly tunable, with possible applications for electronics and other forms of information storage, processing, and transfer. Read more »
A polar mismatch between nonferromagnetic materials drives an electronic reconstruction in which interfacial ferromagnetism is induced. The emergence of such functionality at interfaces could enable new types of electronics for a range of applications, including logic, memory, sensing, and more.
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