Full Reconstruction of a Crystal Unit Cell Structure during Coherent Femtosecond Motion

We present a complete characterization of the unit cell dynamics of a laser-excited tellurium crystal using femtosecond x-ray diffraction. The analysis offers a quantitative measure of the unit cell dynamics without making any assumptions on the symmetry of the excited-state motion. The results show a large-amplitude coherently excited A(1) mode quantitatively consistent with the predictions of a density functional theory model.


Published in:
Physical Review Letters, 103, -
Year:
2009
Publisher:
American Physical Society
ISSN:
0031-9007
Keywords:
Laboratories:




 Record created 2010-11-30, last modified 2018-12-03

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