The hexatic phase of the two-dimensional hard disk system

被引：50

作者：

Jaster, A ^{[1
]}

机构：

[1] Innovista, Dept Phys, D-30171 Hannover, Germany

来源：

PHYSICS LETTERS A | 2004年 / 330卷 / 1-2期

关键词：

hard disk model; two-dimensional melting; KTHNY theory;

D O I：

10.1016/j.physleta.2004.07.055

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report Monte Carlo results for the two-dimensional hard disk system in the transition region. Simulations were performed in the NVT ensemble with up to 1024(2) disks. The scaling behaviour of the positional and bond-orientational order parameter as well as the positional correlation length prove the existence of a hexatic phase as predicted by the Kosterlitz-Thouless-Halperin-Nelson-Young theory. The analysis of the pressure shows that this phase is outside a possible first-order transition. (C) 2004 Elsevier B.V. All rights reserved.

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页码：120 / 125

页数：6

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