Figure 6
Bond types and bond lengths for the relaxed structures of phases where n = 0, 2 and 4 within the asymmetric unit cell plotted on the zone axis. Trigonal PbS from the literature is also illustrated for comparison. Red = Bi, blue = Te, yellow = S, green = Pb. Projections of bonds along the c axis are labelled underneath, they represent the bond length contributions to dsub shown in Fig. 8. |