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NANOSTRUCTURED MAGNETIC MATERIALS BY MAGNETOELECTROLYSIS

N. Sulitanu1,*

Affiliation

  1. “Al. I. Cuza” University, Faculty of Physics, Department of Solid State Physics, Iasi 700506, Romania

Abstract

In this paper we report the effects of a high magnetic field up to 15.0 T on the deposition process, morphology, structure and magnetic properties of Co thin films prepared by electrodeposition. Cobalt metal films were deposited from a sulfate bath on a copper substrate with and without magnetic field. The variation of deposition current with applied field was studied. At higher fields a nonlinear increase of deposition current density was observed. Hexagonal phase cobalt with a strong preferred orientation of <100> is deposited by the application of magnetic field antiparallel to the ions motion. The orientation of the c axis of the hexagonal cobalt is distributed both parallel and perpendicular to the film plane as shown too by the hysteresis loops. It is encouraging to note that by the application of magnetic field during the electrodeposition of ferromagnetic films the morphological, crystallographic and magnetic properties may be modified and this technique may be used in technological applications..

Keywords

Cobalt thin films, Magnetoelectrolysis, Nanocrystalline materials, Microstructure, saturation magnetization, Coercivity.

Submitted at: April 26, 2004
Accepted at: June 10, 2004

Citation

N. Sulitanu, NANOSTRUCTURED MAGNETIC MATERIALS BY MAGNETOELECTROLYSIS, Journal of Optoelectronics and Advanced Materials Vol. 6, Iss. 2, pp. 637-640 (2004)