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Atomic-scale visualization of inertial dynamics

Author

  • AM Lindenberg
  • Jörgen Larsson
  • K Sokolowski-Tinten
  • KJ Gaffney
  • C Blome
  • Ola Synnergren
  • J Sheppard
  • C Caleman
  • AG MacPhee
  • D Weinstein
  • DP Lowney
  • TK Allison
  • T Matthews
  • RW Falcone
  • AL Cavalieri
  • DM Fritz
  • SH Lee
  • PH Bucksbaum
  • DA Reis
  • J Rudati
  • PH Fuoss
  • CC Kao
  • DP Siddons
  • R Pahl
  • J Als-Nielsen
  • S Duesterer
  • R Ischebeck
  • H Schlarb
  • H Schulte-Schrepping
  • T Tschentscher
  • J Schneider
  • D von der Linde
  • O Hignette
  • F Sette
  • HN Chapman
  • RW Lee
  • T N Hansen
  • S Techert
  • JS Wark
  • M Bergh
  • G Huldt
  • D van der Spoel
  • N Timneanu
  • J Hajdu
  • RA Akre
  • E Bong
  • P Krejcik
  • J Arthur
  • S Brennan
  • K Luening
  • JB Hastings

Summary, in English

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.

Department/s

Publishing year

2005

Language

English

Pages

392-395

Publication/Series

Science

Volume

308

Issue

5720

Document type

Journal article

Publisher

American Association for the Advancement of Science (AAAS)

Topic

  • Atom and Molecular Physics and Optics

Status

Published

ISBN/ISSN/Other

  • ISSN: 1095-9203