Abstract
A new method of obtaining the asymmetrical magneto-impedance (MI) effect in a zero-magnetostrictive FeCoSiB amorphous wire is presented, where in a wire coil is used to apply a wire pulse current. The mechanism for the generation of the asymmetrical MI effect is qualitatively explained by means of a magnetization rotation model for the surface layer of a wire with a spiral magnetization. A linear magnetic-field sensor circuit uses the amorphous-wire asymmetrical MI element magnetized with a sharp pulse train current in a C-MOS multivibrator circuit.
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