Improvement of sensitivity using carrier suppression technique in high frequency carrier type thin-film magnetic field sensor

Hiroaki Kikuchi, Shin Yabukami, Masahiro Yamaguchi, Ken Ichi Arai, Tetsu Suzuki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper demonstrates a high frequency carrier type thin-film magnetic field sensor (or so-called GMI sensor) with the ac field sensitivity of 9×10-12 T. The sensitivity achieved is well competitive with the high temperature SQUID devices. This has been realized by reducing the phase noise floor down below the thermal noise of -174 dBm at room temperature through the carrier suppression technique. A new idea of sensitive dc field detection is also proposed.

Original languageEnglish
Title of host publicationINTERMAG Europe 2002 - IEEE International Magnetics Conference
EditorsJ. Fidler, B. Hillebrands, C. Ross, D. Weller, L. Folks, E. Hill, M. Vazquez Villalabeitia, J. A. Bain, Jo De Boeck, R. Wood
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)0780373650, 9780780373655
DOIs
Publication statusPublished - 2002
Event2002 IEEE International Magnetics Conference, INTERMAG Europe 2002 - Amsterdam, Netherlands
Duration: 2002 Apr 282002 May 2

Publication series

NameINTERMAG Europe 2002 - IEEE International Magnetics Conference

Other

Other2002 IEEE International Magnetics Conference, INTERMAG Europe 2002
CountryNetherlands
CityAmsterdam
Period02/4/2802/5/2

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Surfaces, Coatings and Films

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