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Atomic-scale visualization of inertial dynamics

  • A. M. Lindenberg
  • , J. Larsson
  • , K. Sokolowski-Tinten
  • , K. J. Gaffney
  • , C. Blome
  • , O. Synnergren
  • , J. Sheppard
  • , C. Caleman
  • , A. G. MacPhee
  • , D. Weinstein
  • , D. P. Lowney
  • , T. K. Allison
  • , T. Matthews
  • , R. W. Falcone
  • , A. L. Cavalieri
  • , D. M. Fritz
  • , S. H. Lee
  • , P. H. Bucksbaum
  • , D. A. Reis
  • , J. Rudati
  • P. H. Fuoss, C. C. Kao, D. P. Siddons, R. Pahl, J. Als-Nielsen, S. Duesterer, R. Ischebeck, H. Schlarb, H. Schulte-Schrepping, Th Tschentscher, J. Schneider, D. Von Der Linde, O. Hignette, F. Sette, H. N. Chapman, R. W. Lee, T. N. Hansen, S. Techert, J. S. Wark, M. Bergh, G. Huldt, D. Van Der Spoel, N. Timneanu, J. Hajdu, R. A. Akre, E. Bong, P. Krejcik, J. Arthur, S. Brennan, K. Luening, J. B. Hastings
  • Stanford Synchrotron Radiation Lightsource
  • Lund University
  • Friedrich Schiller University Jena
  • German Electron Synchrotron
  • University of Oxford
  • Uppsala University
  • University of California at Berkeley
  • University of Michigan, Ann Arbor
  • United States Department of Energy
  • Argonne National Laboratory
  • Brookhaven National Laboratory
  • The University of Chicago
  • University of Copenhagen
  • University of Duisburg-Essen
  • European Synchrotron Radiation Facility
  • Lawrence Livermore National Laboratory
  • Max Planck Institute for Biophysical Chemistry (Karl Friedrich Bonhoeffer Institute)
  • SLAC National Accelerator Laboratory

Research output: Contribution to journalArticlepeer-review

354 Scopus citations

Abstract

The motion of atoms on interatomic potential energy surfaces is fundamental to the dynamics of liquids and solids. An accelerator-based source of femtosecond x-ray pulses allowed us to follow directly atomic displacements on an optically modified energy landscape, leading eventually to the transition from crystalline solid to disordered liquid. We show that, to first order in time, the dynamics are inertial, and we place constraints on the shape and curvature of the transition-state potential energy surface. Our measurements point toward analogies between this nonequilibrium phase transition and the short-time dynamics intrinsic to equilibrium liquids.

Original languageEnglish
Pages (from-to)392-395
Number of pages4
JournalScience
Volume308
Issue number5720
DOIs
StatePublished - Apr 15 2005

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