ACTA

The Investigation on the E-J Characteristics and the Role of Nanoparticle Concentration in Weakly Polar Magnetic Fluids

J. Kurimský^a, B. Dolník^a, K. Marton^a, M. Kolcun^a, L. Tomčo^a, M. Rajňák^b, M. Timko^b, P. Kopčanský^b
^aTechnical University of Košice, Letná 9, 041 54 Košice, Slovakia
^bInstitute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia

Full Text PDF

The paper presents investigation on the magnetic fluids that are stable colloidal suspensions of single-domain magnetic particles in a liquid carrier of dielectrics nature. Studies were made on the electric field vs. current density, e.i. E-J characterization commonly observed in insulating liquids under uniform: low electric or magnetic fields. High performance oil was used as the dielectric carrier. The experiments were carried out at different volume concentrations of magnetite nanoparticles up to 4%.

DOI: 10.12693/APhysPolA.126.246
PACS numbers: 47.65.Cb, 77.22.Jp, 84.37.+q