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Noblest of all metals is structurally unstable at high pressure
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics. (Condensed Matter Theory Group)
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2007 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 98, no 4, 045503- p.Article in journal (Refereed) Published
Abstract [en]

In a series of experiments in externally electrically heated diamond anvil cells we demonstrate that at pressures above similar to 240 GPa gold adopts a hexagonal-close-packed structure. Ab initio calculations predict that at pressures about 250 GPa different stacking sequences of close-packed atomic layers in gold become virtually degenerate in energy, strongly supporting the experimental observations.

Place, publisher, year, edition, pages
2007. Vol. 98, no 4, 045503- p.
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Physical Sciences
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URN: urn:nbn:se:uu:diva-146271DOI: 10.1103/PhysRevLett.98.045503ISI: 000243789700042OAI: oai:DiVA.org:uu-146271DiVA: diva2:397880
Available from: 2011-02-16 Created: 2011-02-16 Last updated: 2017-12-11Bibliographically approved

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Ahuja, Rajeev B.Luo, Wei

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