First Principles Investigation of Cold Curves of Metals

Published

Journal Article

© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim The rapid development of better high pressure experimental techniques combined with efficient and accurate density functional calculations of the structural properties of materials provide a new avenue to promote the study of materials at high pressures, which is currently based mostly on simple phenomenological modelling. The progress of experimental results into higher-pressure regimes represents a challenge to the phenomenological approaches, which can be addressed by carefully considered ab initio calculations. We present cold curves of several elements, calculated using different approximations of DFT and compare them with available experimental data. The comparison shows good agreement both in simple single phase and complex multi-phase cases. It suggests that DFT may be used to extrapolate high pressure behaviour of materials beyond the currently possible pressure range, with a robust estimate of the accuracy of the extrapolation based on various DFT implementations.

Full Text

Duke Authors

Cited Authors

  • Eidelstein, E; Barzilai, S; Curtarolo, S; Levy, O

Published Date

  • August 1, 2020

Published In

Volume / Issue

  • 60 / 8-9

Start / End Page

  • 897 - 904

Electronic International Standard Serial Number (EISSN)

  • 1869-5868

International Standard Serial Number (ISSN)

  • 0021-2148

Digital Object Identifier (DOI)

  • 10.1002/ijch.201900096

Citation Source

  • Scopus