X-ray intensity at T = 30 K, in the H – L plane with K (out-of-plane axis) averaged over all the values (−20 ≤ K ≤ 20), for the intercalated sample ( x = 2%). Only the intercalated sample shows a diffuse scattering that is asymmetrically distributed between the two satellite peaks, in the form of half-diamonds. The white horizontal dotted lines across a pair of CDW-1 satellite peaks mark the region along which a linecut is taken, as shown in c and d.
