Phase diagram of patchy colloids: Towards empty liquids
Phase diagram of patchy colloids: Towards empty liquids
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DOI：
10.1103/physrevlett.97.168301
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发表时间：
2006-10-20
影响因子：
8.6
通讯作者：
Sciortino, Francesco
中科院分区：
文献类型：
--
作者：
Bianchi, Emanuela;Largo, Julio;Sciortino, Francesco
我们报告的理论和数值计算的相图斑片状胶体颗粒的新一代。我们表明，键合最近邻数目的减少提供了产生液态的可能性（即，温度T低于液-气临界温度的状态），占据填充分数（φ）为零，这种情况不能用球形相互作用粒子来实现。理论结果表明，这种减少伴随着（T-phi）平面中液相稳定区域的增加，可能有利于在小phi下建立均匀无序材料，即，稳定的平衡凝胶。
We report theoretical and numerical evaluations of the phase diagram for patchy colloidal particles of new generation. We show that the reduction of the number of bonded nearest neighbors offers the possibility of generating liquid states (i.e., states with temperature T lower than the liquid-gas critical temperature) with a vanishing occupied packing fraction (phi), a case which can not be realized with spherically interacting particles. Theoretical results suggest that such reduction is accompanied by an increase of the region of stability of the liquid phase in the (T-phi) plane, possibly favoring the establishment of homogeneous disordered materials at small phi, i.e., stable equilibrium gels.