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APS » Journals » Phys. Rev. Lett. » Volume 83 » Issue 2
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Phys. Rev. Lett. 83, 336–339 (1999)

Ultrafast Structural Dynamics in InSb Probed by Time-Resolved X-Ray Diffraction

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A. H. Chin1,2,*, R. W. Schoenlein2, T. E. Glover3, P. Balling5, W. P. Leemans4, and C. V. Shank1,2
1Department of Physics, University of California, Berkeley, California 94720
2Material Sciences Division, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720
3Advanced Light Source, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720
4Center for Beam Physics, Accelerator and Fusion Research Division, Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, California 94720
5Institute of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK-8000, Aarhus C, Denmark

Received 23 July 1998; published in the issue dated 12 July 1999

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.

© 1999 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.83.336
DOI:
10.1103/PhysRevLett.83.336
PACS:
65.70.+y, 61.10.-i, 61.66.Dk, 64.60.-i

*Present address: W. W. Hansen Experimental Physics Laboratory, Stanford University, Stanford, California 94305.

 
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