Thermodynamics of finite magnetic two-isomer systems

被引：7

作者：

Borrmann, P

Stamerjohanns, H ^{[1
]}

Hilf, ER

Jund, P

Kim, SG

Tománek, D

机构：

[1] Univ Oldenburg, Dept Phys, D-26111 Oldenburg, Germany

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 1999年 / 111卷 / 23期

关键词：

D O I：

10.1063/1.480423

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We use Monte Carlo simulations to investigate the thermodynamical behavior of aggregates consisting of few superparamagnetic particles in a colloidal suspension. The potential energy surface of this classical two-isomer system with a stable and a metastable "ring" and "chain" configuration is tunable by an external magnetic field and temperature. We determine the complex "phase diagram" of this system and analyze thermodynamically the nature of the transition between the ring and the chain "phase." (C) 1999 American Institute of Physics. [S0021-9606(99)51747-9].

引用

页码：10689 / 10693

页数：5

共 25 条

[1] UNEQUAL FREEZING AND MELTING TEMPERATURES FOR CLUSTERS [J].