Title :
Asymmetrical magneto-impedance effect in twisted amorphous wires for sensitive magnetic sensors
Author :
Kitoh, T. ; Mohri, K. ; Uchiyama, T.
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
fDate :
11/1/1995 12:00:00 AM
Abstract :
An asymmetrical and sensitive magneto-impedance effect was realized in twisted FeCoSiB and CoSiB amorphous wires magnetized with a dc-biased ac current, in impedance up to about 120%/Oe. The asymmetrical magneto-impedance (AMI) is useful to construct linear field sensors without any dc bias field. Mechanisms of the AMI are also discussed
Keywords :
amorphous magnetic materials; boron alloys; cobalt alloys; ferromagnetic materials; iron alloys; magnetic heads; magnetic sensors; magnetoelectric effects; silicon alloys; skin effect; AMI; CoSiB; FeCoSiB; asymmetrical magneto-impedance effect; dc-biased ac current; linear field sensors; magnetic heads; magnetic sensors; skin effect; twisted amorphous wires; Ambient intelligence; Amorphous magnetic materials; Amorphous materials; Frequency; Impedance; Magnetic anisotropy; Magnetic sensors; Magnetostriction; Perpendicular magnetic anisotropy; Wires;
Journal_Title :
Magnetics, IEEE Transactions on
