Fluctuation mediated interaction and phase separation of nanoparticles in a liquid crystal solvent

被引：29

作者：

Bellini, T ^{[1
]}

Caggioni, M

Clark, NA

Mantegazza, F

Maritan, A

Pelizzola, A

机构：

[1] Univ Milan, Dipartimento Chim Biochim & Biotecnol Med, INFM, I-20122 Milan, Italy

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Univ Colorado, Ferroelect Mat Res Ctr, Boulder, CO 80309 USA

[4] Univ Milano Bicocca, Dipartimento Med Sperimentale, INFM, I-20126 Milan, Italy

[5] Scuola Int Super Studi Avanzati, INFM, I-34014 Trieste, Italy

[6] Abdus Salaam Int Ctr Theoret Phys, I-34014 Trieste, Italy

[7] Politecn Torino, Dipartimento Fis, INFM, I-10129 Turin, Italy

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 91卷 / 08期

关键词：

D O I：

10.1103/PhysRevLett.91.085704

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Water-in-oil microemulsions of nanodroplets in the isotropic phase of a thermotropic liquid crystal exhibit, with decreasing temperature and in anticipation of a demixing transition, enhanced correlation in fluctuations of both molecular orientation and droplet concentration. Mean field modeling of this pretransition behavior, on the basis of a lattice in which the nanodroplets are introduced as holes, shows that the observed interdroplet attractive interaction is produced by the disordering effect of the droplets on the liquid crystal and mediated solely by paranematic fluctuations.

引用

页码：857041 / 857044

页数：4

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