(232m) Shape‐Driven Colloidal Crystal—Crystal Transitions
Recent experimental, theoretical, and computational work hasÂ shown that anisotropic colloids exhibit a rich phase behavior,Â including the selfâ?assembly of complex crystal phases. Here,Â we study the thermodynamics of crystalâ??crystal transitionsÂ that are driven by changes in colloid shape. Using rare eventÂ sampling techniques, we find that shapeâ?driven crystalâ??crystal transitions that have similar diffusionless pathways canÂ have unexpectedly complex thermodynamic behaviors. WeÂ discuss implications of our results for reconfigurable colloidalÂ materials.