Magnetic-field-induced birefringence and particle agglomeration in magnetic fluids

被引：83

作者：

Di, Ziyun

Chen, Xianfeng ^{[1
]}

Pu, Shengli

Hu, Xiao

Xia, Yuxing

机构：

[1] Shanghai Jiao Tong Univ, Inst Opt & Photon, Dept Phys, Shanghai 200240, Peoples R China

[2] Shanghai Jiao Tong Univ, State Key Lab Fiber Opt Local Area Commun Network, Shanghai 200240, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 21期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1063/1.2392824

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Birefringent effect dependent on magnetic intensity and wavelength in a water-based Fe3O4 magnetic fluid over the wavelength range of 400-700 nm is studied in this letter. The results are compared with the theory proposed by Llewellyn [J. Phys. D 16, 95 (1983)], in which the optical anistropic properties of the magnetic fluid due to the aggregation of the particles at a relatively low density is suggested. It is shown that the degree of aggregation corresponds to the value of the axial ratio of the aggregated particles. So does the magnitude of the birefringence. (c) 2006 American Institute of Physics.

引用

页数：3

共 25 条

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[3]

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