Enhancement of giant magnetoimpedance in composite wire with insulator layer

  • X. Z. Wang*
  • , W. Z. Yuan
  • , X. D. Li
  • , J. Z. Ruan
  • , Z. J. Zhao
  • , J. X. Yang
  • , X. L. Yang
  • , Z. Sun
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

CuBe/NiFeB and CuBe/Insulator/NiFeB composite wires have been prepared by electroless-deposition. The giant magnetoimpedance (GMI) effect for NiFeB layer with thickness of 3 μm on CuBe core with diameter of 100 μm has been studied. After adding an insulator layer, the maximal GMI ratio of CuBe/Insulator/NiFeB composite wire is much higher than that of CuBe/NiFeB composite wire, and can reach to about 250% at the frequency range of 500 kHz-1 MHz. The results are explained in terms of difference of magnetic structure and different frequency dependence of resistance and reactance of the two kinds of composite wires.

Original languageEnglish
Pages (from-to)269-272
Number of pages4
JournalJournal of Magnetism and Magnetic Materials
Volume308
Issue number2
DOIs
StatePublished - Jan 2007

Keywords

  • Electroless-deposition
  • Giant magnetoimpedance
  • Insulator
  • NiFeB

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