Micro-size magnetic strip for ultra high frequency carrier type magnetic field sensor

Author

Tan, Kenji ; Yamaguchi, Masahiro ; Yamakawa, Kiyoshi ; Ouchi, Kazuhiro ; Arai, Ken-Ichi

Author_Institution

Akita Res. Inst. of Adv. Technol., Japan

Volume

37

Issue

4

fYear

2001

fDate

7/1/2001 12:00:00 AM

Firstpage

2004

Lastpage

2006

Abstract

Magnetic strips aimed at high-frequency carrier-type magnetic field sensors were studied by using various strip widths in a carrier frequency range of gigahertz to obtain conditions for large impedance change. The impedance change was attributed to a magnetic resonance effect. It was shown that DC magnetic field regions at which the maximum change of impedance occur for wide strip elements were closely related to the applied carrier frequencies as expected theoretically. The DC magnetic field for the maximum sensitivity decreased as strips become narrow

Keywords

ferromagnetic resonance; giant magnetoresistance; magnetic field measurement; magnetic microwave devices; magnetic multilayers; magnetic sensors; magnetisation reversal; magnetoresistive devices; skin effect; 3 GHz; DC magnetic field regions; GMI; UHF carrier type magnetic field sensor; ferromagnetic resonance effect; large impedance change; magnetic multilayer; magnetisation reversal; maximum sensitivity; micro-size magnetic strip; skin effect; various strip widths; Frequency; Impedance; Magnetic anisotropy; Magnetic fields; Magnetic films; Magnetic resonance; Magnetic sensors; Perpendicular magnetic anisotropy; Soft magnetic materials; Strips;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.951035

Filename

951035