Figure 6
Occupational modulation of the M position in the incommensurate structure β-K5Yb(MoO4)4, section x2x4 [x3 = 0; x1 = 0 and ½]. Along b, the aperiodic sequence of K1 and Yb defines their distribution in the L layer (see the text, and Figs. 4 and 5): solid lines refer to x1 = 0, whereas dashed lines refer to x1 = ½. The terms of the mixed (Yb,K) position are also indicated. |