Ultrasound-Induced Gradient Crystals Observed by High-Energy X-rays

K. D. Liss*, A. Magerl, A. Remhof, R. Hock

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

High-energy X-ray scattering (90keV) has been performed at the high-energy beamline ID15 at the European Synchrotron Radiation Facility, Grenoble, on perfect Si crystals excited by compressional ultrasound waves in the [111] direction. Two-dimensional intensity maps of the 3̄51 Bragg peak reveal a purely longitudinal distortion of the lattice with respect to the applied distortion field, which is, for the present scattering geometry, inclined by 72° to the diffraction vector. A maximum gain factor of 50 for the diffracted intensity is observed for the strongest sound excitation. A quantitative analysis of the line shape by a transfer- matrix method shows the transition from the diffraction behavior of an ideal crystal towards a crystal slightly deformed by internal stresses.

Original languageEnglish
Pages (from-to)181-186
Number of pages6
JournalActa Crystallographica Section A: Foundations of Crystallography
Volume53
Issue number2
DOIs
StatePublished - 1997
Externally publishedYes

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