Anharmonic Nuclear Motion and the Relative Stability of Hexagonal and Cubic ice
Edgar A. Engel, Bartomeu Monserrat, Richard J. Needs
Physical Review X · 2015
doi:10.1103/physrevx.5.021033 (opens in a new tab)
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Abstract
Water is an abundant resource on Earth and at low temperatures it occurs in hexagonal and cubic forms that differ only in molecular arrangements. Researchers use quantum-mechanical simulations to explain why hexagonal ice has a lower overall free energy than the cubic form and thus why snowflakes are hexagonal.
Abstract licence: CC BY
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