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PREPARATION AND MAGNETIC PROPERTIES OF Ni80Fe20 NANOWIRE ARRAYS

H. Chiriac1,* , T. A. Óvári1, A. E. Moga1, M. Urse1

Affiliation

  1. National Institute of Research & Development for Technical Physics, 47 Mangeron Blvd., 6600 Iasi 3, Romania

Abstract

Arrays of Ni80Fe20 nanowires were prepared by electrodeposition into nanosized pores of anodic alumina and polycarbonate membranes, using a two-electrode electrochemical cell. Nanoporous anodic alumina membranes were prepared in a two-step anodizing process of aluminium foils. The morphology of the samples was investigated by means of scanning electron microscopy (SEM). The structural characteristics of the samples were examined using X-ray diffraction (XRD). Magnetic measurements were performed at room temperature, using a vibrating sample magnetometer (VSM) and showed the as-made samples to be magnetically soft. The magnetization curves are reversible indicating a high saturation field and low remanence. Magnetic anisotropy along the axis of the wire is present..

Keywords

Ni80Fe20, Nanowire array, Magnetization, Magnetic anisotropy.

Submitted at: Oct. 15, 2002
Accepted at: March 12, 2003

Citation

H. Chiriac, T. A. Óvári, A. E. Moga, M. Urse, PREPARATION AND MAGNETIC PROPERTIES OF Ni80Fe20 NANOWIRE ARRAYS, Journal of Optoelectronics and Advanced Materials Vol. 5, Iss. 1, pp. 257-260 (2003)