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Toroidal diamond anvil cell for detailed measurements under extreme static pressures

Author

Listed:
  • Agnès Dewaele

    (CEA, DAM, DIF)

  • Paul Loubeyre

    (CEA, DAM, DIF)

  • Florent Occelli

    (CEA, DAM, DIF)

  • Olivier Marie

    (CEA, DAM, DIF)

  • Mohamed Mezouar

    (ESRF, BP220)

Abstract

Over the past 60 years, the diamond anvil cell (DAC) has been developed into a widespread high static pressure device. The adaptation of laboratory and synchrotron analytical techniques to DAC enables a detailed exploration in the 100 GPa range. The strain of the anvils under high load explains the 400 GPa limit of the conventional DAC. Here we show a toroidal shape for a diamond anvil tip that enables to extend the DAC use toward the terapascal pressure range. The toroidal-DAC keeps the assets for a complete, reproducible, and accurate characterization of materials, from solids to gases. Raman signal from the diamond anvil or X-ray signal from the rhenium gasket allow measurement of pressure. Here, the equations of state of gold, aluminum, and argon are measured with X-ray diffraction. The data are compared with recent measurements under similar conditions by two other approaches, the double-stage DAC and the dynamic ramp compression.

Suggested Citation

  • Agnès Dewaele & Paul Loubeyre & Florent Occelli & Olivier Marie & Mohamed Mezouar, 2018. "Toroidal diamond anvil cell for detailed measurements under extreme static pressures," Nature Communications, Nature, vol. 9(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-05294-2
    DOI: 10.1038/s41467-018-05294-2
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    Cited by:

    1. Daijo Ikuta & Eiji Ohtani & Hiroshi Fukui & Takeshi Sakai & Daisuke Ishikawa & Alfred Q. R. Baron, 2022. "Sound velocity of hexagonal close-packed iron to the Earth’s inner core pressure," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    2. Valery I. Levitas & Achyut Dhar & K. K. Pandey, 2023. "Tensorial stress-plastic strain fields in α - ω Zr mixture, transformation kinetics, and friction in diamond-anvil cell," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. M. I. Eremets & V. S. Minkov & P. P. Kong & A. P. Drozdov & S. Chariton & V. B. Prakapenka, 2023. "Universal diamond edge Raman scale to 0.5 terapascal and implications for the metallization of hydrogen," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    4. Charles M. Pépin & Ramesh André & Florent Occelli & Florian Dembele & Aldo Mozzanica & Viktoria Hinger & Matteo Levantino & Paul Loubeyre, 2024. "Metastable water at several compression rates and its freezing kinetics into ice VII," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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