Aluminium is regarded as a simple system in which to test for phenomena occurring at high pressure. Ab initio calculations now show that this metal undergoes a surprising transition to an incommensurate structure when it is subjected to extremely high pressures.
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McMahon, M., Ackland, G. Simple metal no more. Nature Mater 9, 607–608 (2010). https://doi.org/10.1038/nmat2817
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DOI: https://doi.org/10.1038/nmat2817
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