Body-Centered-Cubic Phase Transformation in Gold at TPa Pressures
In situ x-ray diffraction at both the National Ignition Facility and Omega-EP Laser Facility has been utilized to determine the crystallographic state of ramp and shock-ramp compressed gold up to 1.2 TPa (1 TPa=10 Mbar=10×10^{6} atmospheres). In this Letter, we describe a series of experiments that explore a variety of pressure-temperature states in Au, accessed using tailored laser pulses. We find that the ambient pressure face-centered-cubic phase is stable under ramp compression to pressures of at least 1 TPa where the body-centered-cubic phase is observed simultaneously.
Authors
- Eva Zurek (ORCID: https://orcid.org/0000-0003-0738-867X)
- M. Millot (ORCID: https://orcid.org/0000-0003-4414-3532)
- Sébastien Hamel (ORCID: https://orcid.org/0000-0003-4246-0892)
- Stanimir Bonev (ORCID: https://orcid.org/0000-0002-5798-9476)
- Saransh Singh (ORCID: https://orcid.org/0000-0002-0286-9549)
- Amy Lazicki (ORCID: https://orcid.org/0000-0002-9821-6074)
- A. L. Coleman (ORCID: https://orcid.org/0000-0002-5692-4400)
- I. K. Ocampo (ORCID: https://orcid.org/0000-0003-0280-0805)
- Stefano Racioppi (ORCID: https://orcid.org/0000-0002-4174-1732)
- Mary Kate Ginnane (ORCID: https://orcid.org/0000-0002-3436-8917)
- Sirus K. Han (ORCID: https://orcid.org/0000-0003-4379-0551)
- R. F. Smith (ORCID: https://orcid.org/0000-0002-5675-5731)
- J. H. Eggert (ORCID: https://orcid.org/0000-0001-5730-7108)
- J. M. McNaney (ORCID: https://orcid.org/0000-0003-3526-9379)
- M. G. Gorman (ORCID: https://orcid.org/0000-0001-9567-6166)
- Rasool Ahmad (ORCID: https://orcid.org/0000-0002-4154-6902)
- T. Lockard (ORCID: https://orcid.org/0000-0001-5122-7115)
- Damian Swift (ORCID: https://orcid.org/0000-0002-0782-6855)
- A. Krygier (ORCID: https://orcid.org/0000-0001-6178-1195)
- T. S. Duffy (ORCID: https://orcid.org/0000-0002-5357-1259)
- Christopher Wehrenberg
Institutions
- Lawrence Livermore National Laboratory (US)
- Princeton University (US)
- University of Cambridge (GB)
- First Light Diagnostics (United States) (US)
- Energetics (United States) (US)
- Fusion (United States) (US)
- Fusion Academy (US)
- First Light Fusion (GB)
- University of Rochester (US)
- University at Buffalo, State University of New York (US)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1103/yzzv-2w81
- Primary Topic
- Advanced Chemical Physics Studies
- Type
- article
- Field-Weighted Citation Impact
- 0.00