Initial magnetic susceptibility of ferrocolloids: The influence of chain aggregates

被引：0
|
作者：
A. O. Ivanov
机构：
[1] Ural State University,
来源：
Colloid Journal | 2004年 / 66卷
关键词：
Polymer; Magnetic Field; Thin Film; Free Energy; Computer Simulation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The behavior of a system of noninteracting chain aggregates of ferroparticles suspended in a liquid matrix and subjected to a weak uniform permanent magnetic field was studied based on the free energy functional of a monodisperse low-concentration magnetic colloid. The orientational response of a flexible chain to a weak external field showed that the model of rigid rods is applicable only for short chains (doublets and triplets) of large ferroparticles characterized by a strong magnetodipole interaction. The calculated values of the initial magnetic susceptibility of aggregated ferrofluid agree well with the computer simulation data.
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页码：679 / 687
页数：8
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