Soft magnetic properties and giant magneto-impedance effect of Fe-Zr-Nb-B-Cu ribbons

The soft magnetic properties and the giant magneto-impedance (GMI) effect have been studied in Fe sub 84 Zr sub 3.5 Nb sub 3.5 B sub 8 Cu ribbons. The annealed samples with nanocrystalline structure show excellent soft magnetic properties and induced transverse anisotropy. The effective permeability...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Condensed matter 1999-05, Vol.11 (21), p.4251-4259
Main Authors: He, J, Guo, H Q, Shen, B G, He, K Y, Hu, J F
Format: Article
Language:English
Subjects:
Amorphous and nanocrystalline magnetic materials
quasicrystals
Amorphous and quasicrystalline magnetic materials
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Domain effects, magnetization curves, and hysteresis
Exact sciences and technology
Magnetic properties and materials
Magnetization curves, hysteresis, Barkhausen and related effects
Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects
Physics
Studies of specific magnetic materials
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The soft magnetic properties and the giant magneto-impedance (GMI) effect have been studied in Fe sub 84 Zr sub 3.5 Nb sub 3.5 B sub 8 Cu ribbons. The annealed samples with nanocrystalline structure show excellent soft magnetic properties and induced transverse anisotropy. The effective permeability is found to reach a maximum for the sample annealed at 923 K for 20 min. The maximal magneto-impedance ratio Delta Z/Z ( Delta Z/Z = (Z(H) - Z(H sub max ))/Z(H sub max )) of about 383% and the maximal sensitivity (i.e. the maximal value of the derivative of the Delta Z/Z-H sub L curve) of about 0.91% (A m exp -1 ) exp -1 (72% Oe exp -1 ) are measured at frequency f = 2.5 MHz for the same sample. The excellent soft magnetic properties and the induced transverse anisotropy are the basis of obtaining the sensitive magneto-impedance response. The intrinsic mechanism of the influence of the soft magnetic properties on the GMI effect is discussed briefly.
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/11/21/311