Two scenarios for colloidal phase transitions

被引：27

作者：

Zhang, KQ ^{[1
]}

Liu, XY ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Phys, Singapore 117542, Singapore

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.96.105701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A two-dimensional assembly of charged colloidal particles induced by an alternating electric field was studied in real space by means of digital video microscopy. Phase transitions occur from a highly ordered colloidal monolayer to an isotropic suspension by changing the field strength or frequency (in the appropriate range). In particular, it is found that the strength-dependent phase transition is an infinite-order phase transition, in contrast with the frequency-dependent phase transition, which is a second-order phase transition.

引用

页数：4

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