Giant Electron-Phonon Anomaly in Doped and Other Cuprates
Figure 12
IXS energy scans after subtraction of the elastic tail and a constant term corresponding to the stray radiation. The scans were taken with q = (h, k, 0) with h = 0.11, 0.19, 0.27, 0.35 (from the left to the right column) and k as indicated in the figure. The most interesting features are the suppression of the two-component behavior seen by INS at 77 meV near Q = (3.27, 0, 0) and the rapid narrowing and hardening of the phonon line from k = 0 to k = 0.16 for Q = (3.27, k, 0). From [38].
