Nanoscale, covalently bonded GeSe crystals can withstand up to 12.8% recoverable tensile strain through an atomic mechanism called reversible shuffle twinning, giving rise to anisotropic superelasticity.
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Zhou, W., Jiao, J. Ceramic crystals stretch like metal. Nat. Nanotechnol. 20, 715–716 (2025). https://doi.org/10.1038/s41565-025-01912-5
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DOI: https://doi.org/10.1038/s41565-025-01912-5