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Phonon effects in resonant “forbidden” reflections

DOI: 10.1002/pssc.200405396 DOI Help

Authors: V. E. Dmitrienko (A.V. Shubnikov Institute of Crystallography) , E. Ovchinnikova (Moscow State University) , K. Ishida (Tokyo University of Science) , J. Kokubun (Tokyo University of Science) , A. Kirfel (Mineralogisch-Petrologisches Institut der Universität Bonn) , S. Collins (Diamond Light Source) , D. Laundy (Diamond Light Source) , A. P. Oreshko (Moscow State University) , D. Cabaret (Laboratoire de Minéralogie-Cristallographie)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Physica Status Solidi (c) , VOL 1 (11) , PAGES 3081 - 3084

State: Published (Approved)
Published: November 2004

Abstract: The influence of atomic vibrations on the ”forbidden” Bragg reflections, excited near absorption edges owing to anisotropic resonant X-ray scattering, is discussed. It is shown that in spite of the difference of X-rays and phonons energies the “forbidden” reflections can be extremely sensitive to the atomic vibrations and their correlations. The numerical calculations are performed taking into account the correlations of atomic thermal displacements, which give an adequate description of the thermal growth of the 600 forbidden reflection in Ge and describe drastic changes of the “forbidden” reflections spectra in ZnO

Journal Keywords: 61.10.Dp;61.10.Ht;63.20.Kr

Subject Areas: Physics


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