Ultrafast Structural Dynamics in InSb Probed by Time-Resolved X-Ray Diffraction
- 12 July 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 83 (2), 336-339
- https://doi.org/10.1103/physrevlett.83.336
Abstract
Ultrafast structural dynamics in laser-perturbed InSb are studied using time-resolved x-ray diffraction with a novel femtosecond x-ray source. We report the first observation of a delay in the onset of lattice expansion, which we attribute to energy relaxation processes and lattice strain propagation. In addition, we observe direct indications of ultrafast disordering on a subpicosecond time scale.Keywords
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