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    Evidence of a new phenomenon: Quantum tornadoes in momentum space

    March 12, 2025, Categories  Astronomy/Space, Physics

    Quantum tornado in momentum space: In the quantum material tantalum arsenide (TaAs), electrons form vortices in momentum space. Momentum space is a physics concept used to analyze how electrons behave in solids. A research team from the Cluster of Excellence ct.qmat at Würzburg and Dresden has now provided the first experimental evidence of these quantum tornadoes. (Image: think-design | Jochen Thamm)

    A team of researchers from Würzburg has for the first time experimentally demonstrated a quantum tornado. Electrons form vortices in the momentum space of the quantum semi-metal tantalum arsenide.

    Scientists have long known that electrons can form vortices in quantum materials...

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    ‘Nano-Chocolates’ that Store Hydrogen

    December 29, 2021, Categories  Chemistry/Nanotechnology

    The palladium nanoparticles (green) are stabilised by a core of iridium (red). Hydrogen can accumulate on their surface like a kind of chocolate glaze – and can be released again by heating. Credit: DESY, Andreas Stierle

    Innovative ideas for the energy carrier of the future. An innovative approach could turn nanoparticles into simple reservoirs for storing hydrogen. The highly volatile gas is considered a promising energy carrier for the future, which could provide climate-friendly fuels for airplanes, ships and lorries, for example, as well as allowing climate-friendly steel and cement production — depending on how the hydrogen gas is generated...

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