Time-resolved x-ray scattering from laser-molten indium antimonide

Nüske, R.; Schmising, C. v. Korff; Jurgilaitis, A.; Enquist, H.; Navirian, H.; Sondhauss, P.; Larsson, J.
January 2010
Review of Scientific Instruments;Jan2010, Vol. 81 Issue 1, p013106
Academic Journal
We demonstrate a concept to study transient liquids with picosecond time-resolved x-ray scattering in a high-repetition-rate configuration. Femtosecond laser excitation of crystalline indium antimonide (InSb) induces ultrafast melting, which leads to a loss of the long-range order. The remaining local correlations of the liquid result in broad x-ray diffraction rings, which are measured as a function of delay time. After 2 ns the liquid structure factor shows close agreement with that of equilibrated liquid InSb. The measured decay of the liquid scattering intensity corresponds to the resolidification rate of 1 m/s in InSb.


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