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Figure 7
Selected cuts at constant Q through the experimental S′(Q, ω) (black line) for aluminium at 10 K obtained on the MARI spectrometer, ISIS, from Q = 1.0 Å−1 to Q = 7.0 Å−1. The horizontal axes are energy transfer and vibrational frequency (meV and cm−1 respectively) and the vertical axis is Scoh(Q, ω). The width of cut is 0.067 A−1 and the corresponding cut through the LJ 12–6 theoretical data (fitted to elastic constants) is given as the red line. All intensities are to scale.

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