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Noblest of all metals is structurally unstable at high pressure
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2007 (English)In: Physical Review Letters, ISSN 0031-9007, Vol. 98, no 4Article 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
Keyword [en]
equation, state, gold, platinum, standard, mantle, gpa
URN: urn:nbn:se:kth:diva-16348DOI: 10.1103/PhysRevLett.98.045503ISI: 000243789700042ScopusID: 2-s2.0-33846505330OAI: diva2:334390
QC 20100525Available from: 2010-08-05 Created: 2010-08-05Bibliographically approved

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Ahuja, RajeevJohansson, Börje
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Materials Science and EngineeringApplied Material Physics
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