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Observation of structural anisotropy and the onset of liquidlike motion during the nonthermal melting of InSb

Författare:
  • KJ Gaffney
  • AM Lindenberg
  • Jörgen Larsson
  • K Sokolowski-Tinten
  • C Blome
  • Ola Synnergren
  • J Sheppard
  • C Caleman
  • AG MacPhee
  • D Weinstein
  • DP Lowney
  • T Allison
  • T Matthews
  • RW Falcone
  • AL Cavalieri
  • DM Fritz
  • SH Lee
  • PH Bucksbaum
  • DA Reis
  • J Rudati
  • AT Macrander
  • PH Fuoss
  • CC Kao
  • DP Siddons
  • R Pahl
  • K Moffat
  • J Als-Nielsen
  • S Duesterer
  • R Ischebeck
  • H Schlarb
  • H Schulte-Schrepping
  • J Schneider
  • D von der Linde
  • O Hignette
  • F Sette
  • HN Chapman
  • RW Lee
  • Tue Hansen
  • 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
Publiceringsår: 2005
Språk: Engelska
Publikation/Tidskrift/Serie: PHYSICAL REVIEW LETTERS
Volym: 95
Nummer: 12
Dokumenttyp: Artikel
Förlag: American Physical Society

Sammanfattning

The melting dynamics of laser excited InSb have been studied with femtosecond x-ray diffraction. These measurements observe the delayed onset of diffusive atomic motion, signaling the appearance of liquidlike dynamics. They also demonstrate that the root-mean-squared displacement in the 111 direction increases faster than in the 110 direction after the first 500 fs. This structural anisotropy indicates that the initially generated fluid differs significantly from the equilibrium liquid.

Disputation

Nyckelord

  • Physics and Astronomy
  • Chemistry

Övrigt

Published
Yes
  • ISSN: 0031-9007

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