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Clusters of 10 tantalum atoms, arranged in triangles, create stress in the crystal’s structure. This stress unlocks unique magnetic properties, essential for future technologies such as quantum computing. Credit: Jewook Park/ORNL, U.S. Dept. of Energy Researchers at the Department of Energy’s Oak Ridge National Laboratory, working with international partners, have uncovered surprising behavior in a specially engineered crystal. Composed of tantalum, tungsten and selenium — el

Scanning electron microscope images of helical-shaped device samples made of Co₃Sn₂S₂ in various dimensions @Riken Scientists from the RIKEN Center for Emergent Matter Science and colleagues have developed a new way to fabricate three-dimensional nanoscale devices from single-crystal materials using a focused ion beam instrument. The group used this new method to carve helical-shaped devices from a topological magnet composed of cobalt, tin, and sulfur, with a chemical formul

Scanning electron microscope (SEM) image of the team’s miniaturized, 3D-printed ion trap. Forty calcium ions are trapped in the space between the four poles that create an oscillating electrical potential. @Xiaoxing Xia/LLNL Researchers at Lawrence Livermore National Laboratory (LLNL), the University of California (UC) Berkeley, UC Riverside and UC Santa Barbara have miniaturized quadrupole ion traps for the first time with 3D printing — a breakthrough in one of the most p

@EPFL EPFL researchers have shown theoretically that, in highly ordered materials, heat can flow toward warmer regions without violating the laws of thermodynamics. Their work could help design electronics that minimize heat loss. To understand how heat normally flows, you could study the second law of thermodynamics – or wrap your hands around a hot mug of coffee. Both tell us that heat tends to flow toward cooler regions. As a material’s thermal energy increases, its atoms

Extended Data Fig. 2 Co 3 Sn 2 S 2 helix device fabrication. @ Nature Scientists from the RIKEN Center for Emergent Matter Science and colleagues have developed a new way to fabricate three-dimensional nanoscale devices from single-crystal materials using a focused ion beam instrument. The group used this new method to carve helical-shaped devices from a topological magnet composed of cobalt, tin, and sulfur, with a chemical formula of Co₃Sn₂S₂, and found that they behave li

Schematic view: In an acidic electrolyte H 2 SO 4 , proton intercalation displaces confined water molecules, protonating the MXene surface, which results in a reduced Titanium oxidation state.  © Energy & Environmental Science / HZB In a neutral electrolyte Li 2 SO 4 the interaction of partially desolvated Li⁺ ions and water with the MXene surface results in an increased Titanium oxidation state. The two different chemical behaviours also change the interlayer spacing of the