| | |
| | |
Stat |
Members: 3667 Articles: 2'599'751 Articles rated: 2609
08 February 2025 |
|
| | | |
|
Article overview
| |
|
Crystal nucleation as delocalization of local symmetry breaking in supercooled liquid | John Russo
; Hajime Tanaka
; | Date: |
1 Sep 2011 | Abstract: | By means of computer simulations of the simplest nontrivial model of a
liquid, the hard sphere system, we show that, in contrast to classical
nucleation theory, the crystallization process does not occur homogeneously in
the melt, but in pre-existing regions of high orientational order. This
provides a new selection principle of crystal polymorph: the crystal to be
formed first has the local symmetry of the ordered regions. Furthermore, we
find that the liquid-solid transition occurs microscopically without any
density change, and is instead characterized by a discontinuous jump of the
orientational order, contrary to the common belief that crystal nucleation
accompanies the jump in local density. Crystal nucleation is, thus, triggered
by the transition from local to extended symmetry breaking, and not by
translational ordering. | Source: | arXiv, 1109.0107 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|