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RETURN TO ISSUEPREVB: Liquids, Chemical...B: Liquids, Chemical and Dynamical Processes in Solution, Spectroscopy in SolutionNEXT

Structural Changes in Liquid Lithium under High Pressure

  • Yu Shu
    Yu Shu
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
    More by Yu Shu
  • Yoshio Kono
    Yoshio Kono
    Geodynamics Research Center, Ehime University, Ehime 790-8577, Japan
    More by Yoshio Kono
  • Itaru Ohira
    Itaru Ohira
    Geodynamics Research Center, Ehime University, Ehime 790-8577, Japan
    Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, United States
    More by Itaru Ohira
  • Rostislav Hrubiak
    Rostislav Hrubiak
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
  • Curtis Kenney-Benson
    Curtis Kenney-Benson
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
  • Maddury Somayazulu
    Maddury Somayazulu
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
  • Nenad Velisavljevic
    Nenad Velisavljevic
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
    Physics Division, Lawrence Livermore National Laboratory, Livermore, California 94550, United States
  • , and 
  • Guoyin Shen*
    Guoyin Shen
    High Pressure Collaborative Access Team, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, United States
    *Email: [email protected]
    More by Guoyin Shen
Cite this: J. Phys. Chem. B 2020, 124, 33, 7258–7262
Publication Date (Web):July 21, 2020
https://doi.org/10.1021/acs.jpcb.0c05324
Copyright © 2020 American Chemical Society

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    Abstract

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    We have experimentally studied the effect of compression on the structure of liquid lithium (Li) by multiangle energy dispersive X-ray diffraction in a large-volume cupped-Drickamer-Toroidal cell. The structure factors, s(q), of liquid Li have been successfully determined under an isothermal compression at 600 ± 30 K and at pressures up to 11.5 GPa. The first peak position in s(q) is found to increase with increasing pressure and is showing an obvious slope change starting at ∼7.5 GPa. The slope change is interpreted as a structural change from bcc-like to fcc-like local ordering in liquid Li. At pressures above 8.7 GPa, the liquid Li becomes predominantly fcc-like up to the highest pressure of 11.5 GPa in this study. The observed structural changes in liquid Li are consistent with the recently determined melting curve of Li.

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    Cited By

    This article is cited by 2 publications.

    1. Arunkumar Bommannavar, Paul Chow, Rich Ferry, Rostislav Hrubiak, Freda Humble, Curtis Kenney-Benson, Mingda Lv, Yue Meng, Changyong Park, Dmitry Popov, Eric Rod, Maddury Somayazulu, Guoyin Shen, Dean Smith, Jesse Smith, Yuming Xiao, Nenad Velisavljevic. Overview of HPCAT and capabilities for studying minerals and various other materials at high-pressure conditions. Physics and Chemistry of Minerals 2022, 49 (9) https://doi.org/10.1007/s00269-022-01209-2
    2. James W E Drewitt. Liquid structure under extreme conditions: high-pressure x-ray diffraction studies. Journal of Physics: Condensed Matter 2021, 33 (50) , 503004. https://doi.org/10.1088/1361-648X/ac2865