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Figure 17
Phonon energy (top panel) and linewidth (bottom panel) dispersions on epitaxial U1–xMox thin film alloys. Transverse (longitudinal) acoustic modes are shown as blue squares (red circles) for the alloy with 23 at% Mo. Theoretical results from a virtual crystal approximation for an alloy with 25 at% Mo are shown as dashed white lines. The full spectral function is plotted as a log0.6 color map to rescale the intensity divergence at gamma. All directions are within the parent BZ. The bottom panel shows raw linewidths, Γ0, as gray squares (TA) and circles (LA). Deconvoluted linewidths Γd are shown by dashed blue (TA) and red (LA) trend lines. Reprinted with permission from Chaney et al. (2021BB158). Copyright (2021) by the American Physical Society.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 28| Part 6| November 2021| Pages 1692-1708
https://doi.org/10.1107/S1600577521009413
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