Locked-floating-solid to locked-smectic transition in colloidal systems

被引：39

作者：

Baumgartl, J ^{[1
]}

Brunner, M ^{[1
]}

Bechinger, C ^{[1
]}

机构：

[1] Univ Stuttgart, Inst Phys, D-70550 Stuttgart, Germany

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.93.168301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate two-dimensional melting of a colloidal system in the presence of a one-dimensional periodic substrate potential created by two interfering laser beams. We study the commensurability ratio p=root3a/2d=2 with a the mean particle distance and d the period of the periodic potential. In contrast with the previously investigated case p=1, here we observe that melting of the locked-floating solid occurs via a novel locked-smectic phase, predicted by recent theoretical studies.

引用

页码：168301 / 1

页数：4

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