Gas-liquid transition in a two-dimensional system of millimeter-sized like-charged metal balls

被引：26

作者：

Tata, BVR

Rajamani, PV

Chakrabarti, J

Nikolov, A

Wasan, DT ^{[1
]}

机构：

[1] IIT, Dept Chem Engn, Chicago, IL 60616 USA

[2] Indira Gandhi Ctr Atom Res, Div Mat Sci, Kalpakkam 603102, Tamil Nadu, India

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.84.3626

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Metal balls with a diameter of 1.59 mm, gently rubbed against a dielectric surface using a shaker, are seen to spontaneously exhibit a two-dimensional liquidlike order with macroscopic dimensions, viz., interball distances of several millimeters. This liquidlike order transforms to a gaslike order through coexistence upon decreasing the area fraction of the balls. The measured pair interaction of like-charged balls surprisingly exhibits a long-range attractive term analogous to that in charged colloids.

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页码：3626 / 3629

页数：4

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