Epitaxial nucleation of a crystal on a crystalline surface
Epitaxial nucleation of a crystal on a crystalline surface
复制标题
DOI：
10.1209/0295-5075/105/18004
复制
发表时间：
2014-01-01
期刊：
影响因子：
1.8
通讯作者：
Sear, R. P.
中科院分区：
文献类型：
--
作者：
Mithen, J. P.;Sear, R. P.
我们考虑在不同物质的结晶表面上，晶相的成核。60年前，特恩布尔和冯内古特预测，当两种体晶格之间存在完美的外延匹配时，晶体表面最适合诱导另一种晶体的成核。我们使用计算机模拟来证明这是不完全正确的。事实上，有限核的晶格是从体中应变的，并且当表面匹配这种应变晶格时，成核最快。我们还发现，希利尔和沃德的方法预测成核外延。版权所有（C）2014 EPLA
We consider the nucleation of a crystal phase, on a crystalline surface of a different substance. Sixty years ago, Turnbull and Vonnegut predicted that a crystalline surface is best at inducing nucleation of another crystal when there is a perfect epitaxial match between the two bulk lattices. We use computer simulation to show that this is not quite right. In fact, the crystal lattice of a finite nucleus is strained from that in the bulk, and nucleation is fastest when the surface matches this strained lattice. We also find that the approach of Hillier and Ward predicts when nucleation is epitaxial. Copyright (C) EPLA, 2014