Abstract
The dynamic structure factor for incoherent neutron scattering from light mass particles substituted in a solid is calculated for two model systems. One model is appropriate for a dilute concentration of light particles in a matrix, and the second is a binary system with various masses and force constants. The exact calculations are used to assess the value of approximation schemes for the dynamic structure factor which exploit the separation of time scales in the motions of the light and the heavier lattice particles.
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At Rutherford Appleton Laboratory for the duration of this work
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Warner, M., Lovesey, S.W. & Smith, J. The theory of neutron scattering from mixed harmonic solids. Z. Physik B - Condensed Matter 51, 109–126 (1983). https://doi.org/10.1007/BF01308765
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DOI: https://doi.org/10.1007/BF01308765