Erratum: Shape Change as an Indicator of Mechanism in the High-Pressure Structural Transformations of CdSe Nanocrystals [Phys. Rev. Lett. 84, 923 (2000)]
Physical Review Letters
Color Figs. 1 and 2 of our Letter were inadvertently printed as grey shade. Below is the proper color version of both figures. The on-line version of the Letter was unaffected by this error. FIG. 1 (color). Multiple hysteresis cycles of 45 Å CdSe nanocrystals showing the unit cell volumes of the fourfold and sixfold coordinated phases versus pressure. The red squares and triangles represent the fourfold and sixfold coordinated phases (respectively) from the first cycle; blue squares and
... squares and triangles represent the same for the second cycle. The solid arrows indicate direction of pressure change, and the dotted boxes indicate the mixed phase regions for the two cycles; the cycles overlap within experimental error. On the right is the shape change that a macroscopic wurtzite particle would undergo if the proposed mechanism were implemented. FIG. 2 (color). Sequence of shape changes found by comparing simulated patterns to the background subtracted experimental data (black). Shapes inside the figure boundary (in red) indicate the best fits. Layers indicate close-packed planes. Shaded planes indicate zinc-blende (ABC) stacking and white wurtzite (ABA) stacking. Blue, yellow, and green indicate shapes or stacking sequences that did not fit (shapes outside the figure boundary). (a) and (b) show the effects of different shapes on the fourfold and sixfold coordinated patterns, while (c) illustrates the effects of different types of stacking. All patterns shown are for particles with ϳ1800 atoms (same as a 45 Å sphere). The graph at the top left is a magnification of the boxed area in (b).