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Title: Zero-Kelvin Compression Isotherms of the Elements 1 ≤ Z ≤ 92 to 100 GPa

Journal Article · · Journal of Physical and Chemical Reference Data
DOI:https://doi.org/10.1063/1.4963086· OSTI ID:1342250

Most of the chemical elements have now been compressed close to or above 100 GPa (1 Mbar) pressure in diamond-anvil cells and the pressure–volume room-temperature isotherms have been measured. We collect these data and use simple lattice-dynamics models to reduce the isotherms to 0 K. We have extended the published work by making new diamond-anvil-cell measurements on Cr and Rh, and by conducting density-functional calculations on the elements Po, At, Rn, Fr, Ra, and Ac. The 0 K data are tabulated for all elements 1 ≤ Z ≤ 92 and 0 ≤ P ≤ 100 GPa. These data are useful for generating wide-range equation of state models and for studying the stability of chemical compounds at high pressure (“Megabar chemistry”). The tables presented here are intended to be reference thermodynamic tables for use in high-pressure research. Further experimental and theoretical work will be needed to extend the tables to higher pressure and to improve accuracy.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI ID:
1342250
Journal Information:
Journal of Physical and Chemical Reference Data, Vol. 45, Issue 4; ISSN 0047-2689
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
ENGLISH

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Cited By (2)

Melting curve of vanadium up to 470 GPa simulated by ab initio molecular dynamics journal November 2019
Analytical calculation of pressure for confined atomic and molecular systems using the eXtreme‐Pressure Polarizable Continuum Model journal September 2018

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