The Open Materials Science Journal

2007, 1 : 1-12
Published online 2007 August 24. DOI: 10.2174/1874088X00701010001
Publisher ID: TOMSJ-1-1

Development of Ultra-Thin Glass-Coated Amorphous Microwires for High Frequency Magnetic Sensors Applications

V. Zhukova , M. Ipatov , C. García , J. Gonzalez , J.M. Blanco and A. Zhukov
Dpto. de Física Aplicada, EUPDS, Universidad del País Vasco, 20009 San Sebastián, Spain.

ABSTRACT

The giant magneto-impedance (GMI) effect has been studied in 3 different families of amorphous wires: conventional amorphous wires (125 μm in diameter), cold drawn wires (50 and 20 μm in diameter) and thin glass coated amorphous microwires (with metallic nucleus diameter of about 15 μm). These wires have been investigated in the frequency range 1 – 500 MHz. A remarkable difference in the magnetic field dependence of the GMI effect can be attributed to the different magnetoelastic anisotropy of these three families of the wires.

Keywords:

Amorphous wires and microwires, giant magneto-impedance, skin effect.