BIREFRINGENCE AND MAGNETO-OPTICAL PROPERTIES IN OLEIC ACID COATED Fe3O4 NANOPARTICLES: APPLICATION FOR OPTICAL SWITCH-Reference-Cited by-同舟云学术

BIREFRINGENCE AND MAGNETO-OPTICAL PROPERTIES IN OLEIC ACID COATED Fe3O4 NANOPARTICLES: APPLICATION FOR OPTICAL SWITCH

Published:2011-06 Issue:03 Volume:10 Page:515-520
ISSN:0219-581X
Container-title:International Journal of Nanoscience
language:en
Short-container-title:Int. J. Nanosci.

Author:

XIA SI-HUA¹,WANG JUN¹,LU ZHANG-XIAN²,ZHANG FEIYAN¹

Affiliation:

1. Faculty of Science, Ningbo University Ningbo, 315211, Zhejiang, China

2. Junior College, Wanli University Ningbo, 315100, Zhejiang, China

Abstract

We report magneto-optical properties in a kerosene colloidal suspension of oleic acid coated Fe3O4 nanoparticles (~14 nm). The magnetic colloids (fluids) show birefringence under a magnetic field. Systematical studies of the on–off switch times upon application of the on–off magnetic field with varied experimental parameters indicate that the switch response time depends strongly on the strength of the magnetic field and the concentration of the magnetic nanoparticles in the fluid. The data can be explained in terms of the formation of magnetic nanoparticle chains under a magnetic field. The important magneto-optical properties of the magnetic fluids allow us to design a tunable optical switch.

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Computer Science Applications,Condensed Matter Physics,General Materials Science,Bioengineering,Biotechnology

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0219581X11008289

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