Magnetooptical effects in magnetic fluid containing large aggregates

被引：25

作者：

Mehta, RV ^{[1
]}

Upadhyay, R ^{[1
]}

Patel, R ^{[1
]}

Trivedi, P ^{[1
]}

机构：

[1] Bhavnagar Univ, Dept Phys, CSIR, Bhavnagar 364002, Gujarat, India

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2005年 / 289卷

关键词：

magnetooptical effect; magnetic fluids; aggregation in magnetic fluids;

D O I：

10.1016/j.jmmm.2004.11.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Expressions for magnetically induced extinction for two orthogonal states of polarization of a system containing a mixture of single nanomagnets and their large aggregates are derived. It is shown that the plots of extinction vs. field exhibit minimum only for one state of polarization. The fields corresponding to minimum and crossover depend on number of aggregates. These deductions are experimentally verified for a dilution sensitive fluid. It is shown that the concentration of aggregates depends on temperature of the fluid. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：36 / 38

页数：3

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