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One of the biggest Greek research institutions, FORTH (Foundation for Research and Technology – Hellas), has developed patents and technologies that found
One of the biggest Greek research institutions, FORTH (Foundation for Research and Technology – Hellas), has developed patents and technologies that found
Oct. 19, 2021 -- Three Chicago Quantum Exchange Members have received distinguished awards from the American Physical Society (APS) for their work in
How to Focus a Bose-Einstein Condensate in a Waveguide April 28, 2021• Physics 14, s55 A new “lensing” technique counters the spreading of an ultracold cloud of atoms inside a tiny waveguide. S. Pandey S. Pandey × An ultracold cloud of atoms spreads with time, just as a beam of light spreads in space, but an electromagnetic “lens” can “focus” the cloud and reduce its kinetic energy. The lowest energies yet achieved—in the picokelvin (pK) range—require large facilities that allow the atoms to fall freely for several seconds. Now researchers have demonstrated a lens ...
Abstract Transition metal sulfides have been demonstrated to be more active electrocatalysts than the corresponding (hydr)oxides for oxygen evolution reaction (OER). The nature of active sites, however, remains unclear. Here, we study whether S could promote the OER activity of FeCoOOH and try to identify the catalytically active centers. Density functional theory suggests that two coordinating S could work synergistically with one adjacent Fe to optimize the electronic states of Co, resulting in decreased binding energy of OH∗ (ΔE ) while little changed ΔE , and thus significantly loweri...