J. Phys. IV France 07 (1997) C1-563-C1-564
Study of Certain Magnetite and Mix Ferrite Magnetic Liquids in Static and Radiofrequency FieldsI. Malaescu1, I. Hrianca1 and L. Gabor2
1 West University of Timisoara, Department of Electricity and Magnetism, Bd. V. Parvan # 4, 1900 Timisoara, Romania
2 "Politehnica" University Timisoara, P-ta Victoriei 2, 1900 Timisoara, Romania
the complex magnetic susceptibility components were determined for magnetic liquids based on magnetite and on mix ferrite of the type MexZn1-xFe2O4, where Me can be either Ni or Mn. A maxim of the imaginary component of the magnetic susceptibility was observed at freqencies of tens MHz, assigned to relaxation processes of Néel type. The anisotropy constant of particles from the liquids studied was evaluated by using both static and dynamic measurements.
© EDP Sciences 1997