Giant magnetoimpedance effect in nanocrystalline Fe74SixB22-xCu1Nb3 ribbons

Y. Ueda, S. Ikeda, W. Takakura

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


We investigated the magnetoimpedance (MI) effect for the soft magnetic nanocrystalline Fe74SixB22-xCu1Nb3(x = 4-18) alloys, and also the relationship between the magnetic properties and the MI effect. The annealing temperature dependence of the MI ratio corresponds to that of the permeability of longitudinal direction of the samples. However, the Si concentration dependence of the longitudinal permeability is different from that of the MI ratio. The maximum MI ratio and the highest field sensitivity for die sample with x = 16 after annealing at 570 °C for 1 h are 67% and 23*/Oe, respectively. The MI effect is affected by the magnetic uniaxial anisotropy which is along the longitudinal direction of the ribbon samples.

Original languageEnglish
Pages (from-to)5787-5789
Number of pages3
JournalJournal of Applied Physics
Issue number8 PART 2B
Publication statusPublished - 1997 Apr 15


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