Figure 3
Variation in (a) unit-cell parameter a and (b) interlayer distance dsub plotted as a function of PbS/(PbS+Bi2Te2S) for the seven studied phases. Published experimental data (Table 1) are included for comparison. Ttd is tetradymite, Alk is aleksite, Sdd is saddlebackite, Hit is hitachiite. |