Two-Dimensional Colloidal Alloys
Two-Dimensional Colloidal Alloys
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DOI：
10.1103/physrevlett.106.128302
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发表时间：
2011-03-24
影响因子：
8.6
通讯作者：
Horozov, Tommy S.
中科院分区：
文献类型：
--
作者：
Law, Adam D.;Buzza, D. Martin A.;Horozov, Tommy S.
We study the structure of mixed monolayers of large (3 mu m diameter) and small (1 mu m diameter) very hydrophobic silica particles at an octane-water interface as a function of the number fraction of small particles xi. We find that a rich variety of two-dimensional hexagonal super-lattices of large (A) and small (B) particles can be obtained in this system due to strong and long-range electrostatic repulsions through the nonpolar octane phase. The structures obtained for the different compositions are in good agreement with zero temperature calculations and finite temperature computer simulations.
