Fluids of clusters in attractive colloids

被引:210
作者
Lu, PJ [1 ]
Conrad, JC
Wyss, HM
Schofield, AB
Weitz, DA
机构
[1] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA
[2] Harvard Univ, DEAS, Cambridge, MA 02138 USA
[3] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
基金
英国工程与自然科学研究理事会;
关键词
D O I
10.1103/PhysRevLett.96.028306
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that colloidal particles with attractive interactions induced by a nonadsorbing polymer exhibit a stable phase consisting of a fluid of clusters of particles. This phase persists even in the absence of any long-range repulsion due to charge, contrary to expectations based on simulation and theory. Cluster morphology depends strongly on the range of the interparticle attraction: With a shorter range, clusters are tenuous and branched; with a longer range, they are more compact.
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页数:4
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