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Atomic-Spring-like Effect in Glassy Silica-Helium Composites

Abstract : Amorphous materials are structurally complex compounds, some of which exhibit network glass topologies, with ongoing fundamental questions on their local 1,2 /intermediate 3,4 orders, transitions between 'polyamorphs' 5,6 or in the liquid state 7,8. These features, which are responsible for interesting physical properties, are widely used in optical and electronic devices as found in the special case of the archetype amorphous silica, a-silica. Here we determine the structural origin of an "atomic-spring effect" in an amorphous silica-helium composite, which exhibits a mechanical property that reversibly accumulates and restores energy at the subnanoscale. Such an "atomic-spring mechanical
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https://hal-cnrs.archives-ouvertes.fr/hal-03821835
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Submitted on : Wednesday, October 19, 2022 - 10:36:29 PM
Last modification on : Saturday, October 22, 2022 - 3:18:19 AM

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Daniel T Bowron, David A Keen, Mathieu Kint, Coralie Weigel, Benoit Ruffle, et al.. Atomic-Spring-like Effect in Glassy Silica-Helium Composites. Journal of Physical Chemistry C, 2022, 126 (12), pp.5722-5727. ⟨10.1021/acs.jpcc.2c00026⟩. ⟨hal-03821835⟩

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