Title :
Cadmium-ferrite-based magnetic fluid: birefringence and transmission electron microscopy investigation
Author :
Morais, P.C. ; Silva, O. ; Gravina, P.P. ; Figueiredo, L.C. ; Lima, E.C.D. ; Silva, L.P. ; Azevedo, R.B. ; Neto, K. Skeff
Author_Institution :
Inst. de Fisica, Univ. de Brasilia, Brasilia-DF, Brazil
Abstract :
In this paper, a new hydrocarbon-based magnetic fluid containing CdFe2O4 nanoparticles was investigated using static magnetic birefringence (SMB) and transmission electron microscopy. Inclusion of the dependence of the birefringence signal upon both the magnetic permeability and the formation of chain-like structures yields excellent agreement between the SMB data and the model used to fit them.
Keywords :
birefringence; cadmium compounds; ferrites; magnetic fluids; magnetic particles; magnetic permeability; nanoparticles; transmission electron microscopy; CdFe2O4; cadmium-ferrite-based magnetic fluid; hydrocarbon-based magnetic fluid; magnetic permeability; nanoparticles; static magnetic birefringence; transmission electron microscopy; Birefringence; Cadmium; Ferrites; Magnetic force microscopy; Magnetic liquids; Nanoparticles; Optical modulation; Permeability; Saturation magnetization; Transmission electron microscopy;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2003.815537
