X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium
Abstract
Hydrogen, the simplest element in the universe, has a surprisingly complex phase diagram. Because of applications to planetary science, inertial confinement fusion and fundamental physics, its high-pressure properties have been the subject of intense study over the past two decades. While sophisticated static experiments have probed hydrogen’s structure at ever higher pressures, studies examining the higher-temperature regime using dynamic compression have mostly been limited to optical measurement techniques. Here we present spectrally resolved x-ray scattering measurements from plasmons in dynamically compressed deuterium. Combined with Compton scattering, and velocity interferometry to determine shock pressure and mass density, this allows us to extract ionization state as a function of compression. As a result, the onset of ionization occurs close in pressure to where density functional theory-molecular dynamics (DFT-MD) simulations show molecular dissociation, suggesting hydrogen transitions from a molecular and insulating fluid to a conducting state without passing through an intermediate atomic phase.
- Authors:
-
- Univ. of California, Berkeley, CA (United States); Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Univ. of California, Los Angeles, CA (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Rockstock Univ., Rockstock (Germany). Inst. fur Physik
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Univ. of California, Berkeley, CA (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States); Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1234196
- Alternate Identifier(s):
- OSTI ID: 1260480; OSTI ID: 1266257
- Report Number(s):
- SLAC-PUB-16446; LLNL-JRNL-690581
Journal ID: ISSN 2041-1723
- Grant/Contract Number:
- AC02-76SF00515; AC52- 07NA27344; 11-ER- 050; AC52-07NA27344; AC04-94AL85000
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 7; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; MATSCI; OPTICS; 42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE
Citation Formats
Davis, P., Döppner, T., Rygg, J. R., Fortmann, C., Divol, L., Pak, A., Fletcher, L., Becker, A., Holst, B., Sperling, P., Redmer, R., Desjarlais, M. P., Celliers, P., Collins, G. W., Landen, O. L., Falcone, R. W., and Glenzer, S. H. X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium. United States: N. p., 2016.
Web. doi:10.1038/ncomms11189.
Davis, P., Döppner, T., Rygg, J. R., Fortmann, C., Divol, L., Pak, A., Fletcher, L., Becker, A., Holst, B., Sperling, P., Redmer, R., Desjarlais, M. P., Celliers, P., Collins, G. W., Landen, O. L., Falcone, R. W., & Glenzer, S. H. X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium. United States. https://doi.org/10.1038/ncomms11189
Davis, P., Döppner, T., Rygg, J. R., Fortmann, C., Divol, L., Pak, A., Fletcher, L., Becker, A., Holst, B., Sperling, P., Redmer, R., Desjarlais, M. P., Celliers, P., Collins, G. W., Landen, O. L., Falcone, R. W., and Glenzer, S. H. Mon .
"X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium". United States. https://doi.org/10.1038/ncomms11189. https://www.osti.gov/servlets/purl/1234196.
@article{osti_1234196,
title = {X-ray scattering measurements of dissociation-induced metallization of dynamically compressed deuterium},
author = {Davis, P. and Döppner, T. and Rygg, J. R. and Fortmann, C. and Divol, L. and Pak, A. and Fletcher, L. and Becker, A. and Holst, B. and Sperling, P. and Redmer, R. and Desjarlais, M. P. and Celliers, P. and Collins, G. W. and Landen, O. L. and Falcone, R. W. and Glenzer, S. H.},
abstractNote = {Hydrogen, the simplest element in the universe, has a surprisingly complex phase diagram. Because of applications to planetary science, inertial confinement fusion and fundamental physics, its high-pressure properties have been the subject of intense study over the past two decades. While sophisticated static experiments have probed hydrogen’s structure at ever higher pressures, studies examining the higher-temperature regime using dynamic compression have mostly been limited to optical measurement techniques. Here we present spectrally resolved x-ray scattering measurements from plasmons in dynamically compressed deuterium. Combined with Compton scattering, and velocity interferometry to determine shock pressure and mass density, this allows us to extract ionization state as a function of compression. As a result, the onset of ionization occurs close in pressure to where density functional theory-molecular dynamics (DFT-MD) simulations show molecular dissociation, suggesting hydrogen transitions from a molecular and insulating fluid to a conducting state without passing through an intermediate atomic phase.},
doi = {10.1038/ncomms11189},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Mon Apr 18 00:00:00 EDT 2016},
month = {Mon Apr 18 00:00:00 EDT 2016}
}
Web of Science
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