Research outputs: Dr. Stewart McWilliams

  1. Femtosecond diffraction studies of solid and liquid phase changes in shock-compressed bismuth DOI
    M. G. Gorman, Amy Coleman, Richard Briggs, Ryan Mcwilliams, David McGonegle, C A Bolme, A E Gleason, Eric Galtier, H. J. Lee, E Granados et al., Scientific Reports (2018)
  2. Insulator-metal transition in dense fluid deuterium DOI
    Peter M. Celliers, Marius Millot, Stephanie Brygoo, R. Stewart McWilliams, Dayne E. Fratanduono, J. Ryan Rygg, Alexander F. Goncharov, Paul Loubeyre, Jon H. Eggert, J. Luc Peterson et al., Science, 361, 6403 , p. 677-682 (2018)
  3. Metallization and molecular dissociation of dense fluid nitrogen DOI
    Ryan Mcwilliams, Nature Communications (2018)
  4. Finite element modeling of melting and fluid flow in the laser-heated diamond-anvil DOI
    Natalia Gomez-Perez, John Rodriguez and Ryan Mcwilliams, Journal of Applied Physics, 121, p. 145904-145901 (2017)
  5. Ultrafast X-Ray Diffraction Studies of the Phase Transitions and Equation of State of Scandium Shock Compressed to 82 GPa DOI
    R Briggs, M G Gorman, A L Coleman, R S McWilliams, E E McBride, D McGonegle, J S Wark, L Peacock, S Rothman, S G Macleod et al., Physical Review Letters, 118, 2 (2017)
  6. Optical properties of fluid hydrogen at the transition to a conducting state DOI
    Ryan Mcwilliams, D. Allen Dalton, Mohammad F. Mahmood and Alexander F. Goncharov, Physical Review Letters, 116, 25 (2016)
  7. Direct measurement of thermal conductivity in solid iron at planetary core conditions DOI
    Ryan McWilliams, Zuzana Konôpková, Natalia Gomez-Perez and Alexander F. Goncharov, Nature, 534, 7605 , p. 99-101 (2016)
  8. Opacity and conductivity measurements in noble gases at conditions of planetary and stellar interiors DOI
    R. Stewart Mcwilliams, D. Allen Dalton, Zuzana Konopkova, Mohammad F. Mahmood and Alexander F. Goncharov, Proceedings of the National Academy of Sciences, 112, 26 , p. 201421801 (2015)
  9. A flash heating method for measuring thermal conductivity at high pressure and temperature: application to Pt DOI
    Stewart Mcwilliams, Z. Konopkova and Alexander.f. Goncharov, Physics of the Earth and Planetary Interiors (2015)
  10. Phase Transformations and Metallization of Magnesium Oxide at High Pressure and Temperature DOI
    R. S. Mcwilliams, D. K. Spaulding, J. H. Eggert, P. M. Celliers, D. G. Hicks, R. F. Smith, G. W. Collins and R. Jeanloz, Science, 338, 6112 , p. 1330-1333 (2012)
  11. Melting and dissociation of ammonia at high pressure and high temperature DOI
    J. G. O. Ojwang, R. Stewart McWilliams, Xuezhi Ke and Alexander F. Goncharov, The Journal of Chemical Physics, 137, 6 (2012)
  12. Structural and chemical properties of the nitrogen-rich energetic material triaminoguanidinium 1-methyl-5-nitriminotetrazolate under pressure DOI
    R. Stewart McWilliams, Yasmin Kadry, Mohammad F. Mahmood, Alexander F. Goncharov and Jennifer Ciezak-Jenkins, The Journal of Chemical Physics, 137, 5 (2012)
  13. Evidence for a Phase Transition in Silicate Melt at Extreme Pressure and Temperature Conditions DOI
    D. K. Spaulding, R. S. McWilliams, R. Jeanloz, J. H. Eggert, P. M. Celliers, D. G. Hicks, G. W. Collins and R. F. Smith, Physical Review Letters, 108, 6 (2012)
  14. Development of ultrafast spectroscopic techniques to study rapid chemical and physical changes in materials under extreme pressure and temperature conditions DOI
    Alexander F. Goncharov, D.A. Dalton, Stewart Mcwilliams and Mohammad F. Mahmood, 1405 (2012)
  15. Insulator-to-Conducting Transition in Dense Fluid Helium DOI
    P. M. Celliers, P. Loubeyre, J. H. Eggert, S. Brygoo, R. S. Mcwilliams, D. G. Hicks, T. R. Boehly, R. Jeanloz and G. W. Collins, Physical Review Letters, 104, 18 (2010)
  16. Melting temperature of diamond at ultrahigh pressure DOI
    J. H. Eggert, D. G. Hicks, P. M. Celliers, D. K. Bradley, R. S. Mcwilliams, R. Jeanloz, J. E. Miller, T. R. Boehly and G. W. Collins, Nature Physics, 6, 1 , p. 40-43 (2010)
  17. Strength effects in diamond under shock compression from 0.1 to 1 TPa DOI
    R. S. McWilliams, J. H. Eggert, D. G. Hicks, D. K. Bradley, P. M. Celliers, D. K. Spaulding, T. R. Boehly, G. W. Collins and R. Jeanloz, Physical Review B: Condensed Matter and Materials Physics, 81, 1 (2010)
  18. High-precision measurements of the diamond Hugoniot in and above the melt region DOI
    D. G. Hicks, T. R. Boehly, P. M. Celliers, D. K. Bradley, J. H. Eggert, R. S. McWilliams, R. Jeanloz and G. W. Collins, Physical Review B: Condensed Matter and Materials Physics, 78, 17 (2008)
  19. Hugoniot Data for Helium in the Ionization Regime DOI
    J. Eggert, S. Brygoo, P. Loubeyre, R. S. Mcwilliams, P. M. Celliers, D. G. Hicks, T. R. Boehly, R. Jeanloz and G. W. Collins, Physical Review Letters, 100, 12 (2008)
  20. Achieving high-density states through shock-wave loading of precompressed samples DOI
    Raymond Jeanloz, Peter M. Celliers, Gilbert W. Collins, Jon H. Eggert, Kanani K. M. Lee, R. Stewart McWilliams, Stephanie Brygoo and Paul Loubeyre, Proceedings of the National Academy of Sciences, 104, 22 , p. 9172-9177 (2007)
  21. New optical diagnostics for equation of state experiments on the Janus laser
    D. K. Spaulding, D. G. Hicks, R. F. Smith, J. H. Eggert, R. S. McWilliams, G. W. Collins and R. Jeanloz, : AIP CONFERENCE PROCEEDINGS, p. 1071-1074 (2007)