Study of hysteresis for steplike giant magnetoimpedance sensor based on magnetic energy

T. Nakai, K. Ishiyama, J. Yamasaki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

A giant magnetoimpedance sensor with a steplike impedance property was reported in the case of amorphous soft magnetic thin film in a rectangle shape with an in-plane uniaxial easy axis in a controlled direction. The steplike change of impedance happens simultaneously with a change of magnetic domain, and its physical basis was declared as the intersection of the level of magnetic energy in each case of these domain structures. An actual variation of steplike impedance as a function of external magnetic field typically has a hysteretic property. In this study, an explanation of the hysteretic property is discussed based on an introduction of asymmetrical threshold energy, and then an experimental confirmation is carried out for the proposed analytical model.

Original languageEnglish
Pages (from-to)e958-e962
JournalJournal of Magnetism and Magnetic Materials
Volume320
Issue number20
DOIs
Publication statusPublished - 2008 Oct

Keywords

  • Giant magnetoimpedance
  • Steplike giant magnetoimpedance
  • Thin film
  • Uniaxial magnetic anisotropy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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