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    Recovery of a high-pressure phase formed under laser-driven compression

    M. G. Gorman1,*, D. McGonegle2, S. J. Tracy3, S. M. Clarke1, C. A. Bolme4, A. E. Gleason5, S. J. Ali1, S. Hok5, C. W. Greeff6 et al.

    P. G. Heighway2, K. Hulpach7, B. Glam8, E. Galtier9, H. J. Lee9, J. S. Wark2, J. H. Eggert1, J. K. Wicks7, and R. F. Smith1

    • 1Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, California 94500, USA
    • 2Department of Physics, Clarendon Laboratory, Parks Road, University of Oxford, Oxford OX1 3PU, United Kingdom
    • 3Earth and Planets Laboratory, Carnegie Institution of Washington, Washington DC 20015, USA
    • 4Shock and Detonation Physics, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA
    • 5Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
    • 6Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, New Mexico 87545, USA
    • 7Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, Maryland 21218, USA
    • 8Soreq Nuclear Research Center, Yavne 81800, Israel
    • 9Linac Coherent Light Source, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA

    • *gorman11@llnl.gov
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    Phys. Rev. B 102, 024101 – Published 6 July, 2020

    DOI: https://doi.org/10.1103/PhysRevB.102.024101

    Abstract

    The recovery of metastable structures formed at high pressure has been a long-standing goal in the field of condensed matter physics. While laser-driven compression has been used as a method to generate novel structures at high pressure, to date no high-pressure phases have been quenched to ambient conditions. Here we demonstrate, using in situ x-ray diffraction and recovery methods, the successful quench of a high-pressure phase which was formed under laser-driven shock compression. We show that tailoring the pressure release path from a shock-compressed state to eliminate sample spall, and therefore excess heating, increases the recovery yield of the high-pressure ω phase of zirconium from 0% to 48%. Our results have important implications for the quenchability of novel phases of matter demonstrated to occur at extreme pressures using nanosecond laser-driven compression.

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    Phys. Rev. B 102, 024101– Published 6 July, 2020
    • Received 14 April 2020
    • Revised 9 June 2020
    • Accepted 12 June 2020
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