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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

Övriga

Published
Yes
  • ISSN: 0031-9007

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