Fractal structure of the crystalline-nuclei boundaries in 2D colloidal crystallization: Computer simulations

详细信息	查看全文 | 推荐本文 |

• 作者：Agust&#237 ; n E. Gonzá ; lez^a ; ^{agus@fis.unam.mx} ; Leonardo Ixtlilco-Corté ; s^a ; ^b ; ^{leonardo@fis.unam.mx}
• 关键词：Colloidal crystals ; Nucleation ; Computer simulations ; Fractal boundaries ; Line tension
• 刊名：Physics Letters A
• 出版年：2012
• 期刊代码：57_03759601
• 类别：ph
• 出版时间：19 March, 2012
• 卷：376
• 期：16
• 页码：1375-1379
• 文件大小：224 K

摘要

By performing 2D kinetic Monte Carlo simulations of colloidal crystallization we found that the boundaries of the crystalline nuclei are not only rough, as obtained by experimentalists, but fractal, whose value () we calculated. The corresponding boundary for the crystals, above the critical size (), is also fractal but smoother. A knowledge of the particles coordinates during the crystallization process allows us to calculate the , the line tension (纬) and the chemical potential difference (螖渭) between the two phases. However, different from the experimentalists procedure, we found that the boundary fractalities are needed to derive 纬 and 螖渭.