Fig. 7.

Shape-driven solid–solid reconfiguration and self-assembly timescales for BCC, FCC, and SC structures. Thermodynamically discontinuous FCC$\leftrightarrow$BCC solid–solid phase transitions occur dynamically in MC simulations on timescales ($\tau \lesssim {10}^7$ MC sweeps) that are similar to self-assembly timescales ($\tau \approx {10}^6$ MC sweeps) beyond the metastable region. In the metastable region, solid–solid reconfiguration does not occur on timescales ($\tau \gg {10}^7$ MC sweeps) that are much longer than typical self-assembly times. Thermodynamically continuous BCC$\leftrightarrow$SC solid–solid phase transitions occur dynamically in MC simulations on timescales ($\tau \lesssim {10}^6$ MC sweeps) that are comparable with or less than typical self-assembly times.