Structural hierarchy as a key to complex phase selection

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Structural hierarchy as a key to complex phase selection Q (Å-1) We show that crystal genes connect amorphous and crystalline phases during crystallization. Amorphous Al90Sm10 alloys prepared by different techniques display different initial devitrification pathways. However, both devitrified phases share a common motif (crystal gene [3]) with the amorphous alloy. θ phase[2] Q (Å-1) Amorphous Al90Sm10 Melt spun Sputtered Future directions – Address key challenges in modeling of nucleation in undercooled liquids: Calculate nucleation rate of different crystal phases in undercooled liquid as a function of temperature. Examine the effects of changing chemical composition of liquid on nucleation rate. Examine the effects of short-range order in liquids on nucleation rate. [1] Z. Ye, F. Zhang, Y. Sun, M. C. Nguyen, S. H. Zhou, L. Zhou, F. Meng, R. T. Ott, E. S. Park, M. F. Besser, M. J. Kramer, Z.-J. Ding, M. I. Mendelev, C.-Z. Wang, and K.-M. Ho, Phys. Rev. Mater., accepted (2017). [2] Z. Ye, F. Zhang, Y. Sun, M. I. Mendelev, R. T. Ott, E. Park, M. F. Besser, M. J. Kramer, Z. Ding, C. Z. Wang, and K. M. Ho, Appl. Phys. Lett. 106, 101903 (2015). [3] Y. Sun, F. Zhang, Z. Ye, Y. Zhang, X. Fang, Z. Ding, C.-Z. Wang, M.I. Mendelev, R.T. Ott, M.J. Kramer, K.-M. Ho, Sci. Rep. 6 23734 (2016).