Columnar and lamellar phases in attractive colloidal systems

被引：97
作者：
de Candia, A.
Del Gado, E.
Fierro, A.
Sator, N.
Tarzia, M.
Coniglio, A.
机构：
[1] Univ Naples Federico II, Dipartimento Sci Fis, I-80126 Naples, Italy
[2] CNISM, Naples, Italy
[3] INFM, Naples, Italy
[4] CNR Coheretia, INFM, Naples, Italy
[5] Univ Paris 06, Lab Phys Theor Matiere Condensee, UMR CNRS 7600, F-75252 Paris 05, France
来源：
PHYSICAL REVIEW E | 2006年 / 74卷 / 01期
关键词：
D O I：
10.1103/PhysRevE.74.010403
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
In colloidal suspensions, at low volume fraction and temperature, dynamical arrest occurs via the growth of elongated structures that aggregate to form a connected network at gelation. Here we show that, in the region of parameter space where gelation occurs, the stable thermodynamical phase is a crystalline columnar one. Near and above the gelation threshold, the disordered spanning network slowly evolves and finally orders to form the crystalline structure. At higher volume fractions the stable phase is a lamellar one, which seems to have a still longer ordering time.
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页数：4
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