EFFECT OF SOLVENT ON THE MAGNETIC INTERACTIONS BETWEEN Fe3O4 PARTICLES AND SURFACTANTS

EFFECT OF SOLVENT ON THE MAGNETIC INTERACTIONS BETWEEN Fe₃O₄ PARTICLES AND SURFACTANTS

Yang Xielong，

Jiang Jisen，

Jing Jianfeng，

Hsia Yuanfu，

Hu Zheng，

Chen Xinshu，

He Yanhui，

U. Gonser

Nuclear Science and Techniques

Vol.3, No.2

pp.66-68

Published in print 01 May 1992

38100

Mössbauer spectra for 5 nm Fe₃O₄ particles coated with different surfactants (the polar end groups as -COONa and -SO3Na) were measured and show a significant influence on superparamagnetic relaxation with and without the solvent. Some phenomena were explained by the superparamagnetism and the surfactant hydrophilicity.

Fe3O4 particlesSuperparamagnetismSolventMössbauer spectroscopy

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