Detection of Nonthermal Melting by Ultrafast X-ray Diffraction

Author:

Siders C. W.1,Cavalleri A.1,Sokolowski-Tinten K.2,Tóth Cs.3,Guo T.1,Kammler M.4,Hoegen M. Horn von5,Wilson K. R.1,Linde D. von der2,Barty C. P. J.6

Affiliation:

1. Department of Chemistry and Biochemistry,

2. Institut für Laser- und Plasmaphysik, Universität Essen, D-45117 Essen, Germany.

3. Institute for Nonlinear Science,

4. Institut für Halbleitertechnologie,

5. Institut für Festkörperphysik, Universität Hannover, D-30167 Hannover, Germany.

6. Department of Applied Mechanical/Engineering Sciences, University of California, San Diego, La Jolla, CA 92093–0339, USA.

Abstract

Using ultrafast, time-resolved, 1.54 angstrom x-ray diffraction, thermal and ultrafast nonthermal melting of germanium, involving passage through nonequilibrium extreme states of matter, was observed. Such ultrafast, optical-pump, x-ray diffraction probe measurements provide a way to study many other transient processes in physics, chemistry, and biology, including direct observation of the atomic motion by which many solid-state processes and chemical and biochemical reactions take place.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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