skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on May 14, 2019

Title: Ultrafast nonthermal heating of water initiated by an X-ray Free-Electron Laser

The bright ultrafast pulses of X-ray Free-Electron Lasers allow investigation into the structure of matter under extreme conditions. We have used single pulses to ionize and probe water as it undergoes a phase transition from liquid to plasma. We report changes in the structure of liquid water on a femtosecond time scale when irradiated by single 6.86 keV X-ray pulses of more than 10 6 J/cm 2. These observations are supported by simulations based on molecular dynamics and plasma dynamics of a water system that is rapidly ionized and driven out of equilibrium. Finally, this exotic ionic and disordered state with the density of a liquid is suggested to be structurally different from a neutral thermally disordered state.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ;  [3] ;  [3] ; ORCiD logo [4] ;  [1] ;  [1] ;  [3] ;  [3] ;  [2] ;  [3] ;  [3] ;  [5] ;  [3] ; ORCiD logo [6] ; ORCiD logo [7] ;  [8]
  1. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science
  2. Uppsala Univ. (Sweden). Dept. of Physics and Astronomy
  3. SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)
  4. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Photon Science
  5. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  6. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Univ. of Hamburg (Germany). Dept. of Physics; Univ. of Hamburg (Germany). Centre for Ultrafast Imaging
  7. Uppsala Univ. (Sweden). Dept. of Physics and Astronomy and Dept. of Cell and Molecular Biology
  8. Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Center for Free-Electron Laser Science; Uppsala Univ. (Sweden). Dept. of Physics and Astronomy
Publication Date:
Grant/Contract Number:
AC02-76SF00515; P41GM103393; AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Proceedings of the National Academy of Sciences of the United States of America
Additional Journal Information:
Journal Volume: 115; Journal Issue: 22; Journal ID: ISSN 0027-8424
Publisher:
National Academy of Sciences, Washington, DC (United States)
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1458456