Stress induced magnetic anisotropy and giant magnetoimpedance in Fe-rich glass-coated magnetic microwires

The effect of conventional (CA) and stress annealing (SA) on magnetic properties of Fe74B13Si11C2 glass-coated microwires has been studied. CA treatment does not significantly change the character of the hysteresis loop. Under certain annealing conditions (annealing temperature, Tann>300 °C, applied stress, σ>700 MPa) rectangular hysteresis loop transforms into the inclined with magnetic anisotropy field above 1000 A/m. Such phenomenology has been related to the induction of transverse magnetic anisotropy by SA treatment. Under tensile stress the SA annealed microwire recovers rectangular hysteresis loop. Samples subjected to stress annealing show noticeable magnetoimpedance and stress impedance effects in spite of their large magnetostriction.

[1]  A. Zhukov,et al.  Physical properties of nearly zero magnetostriction Co-rich glass-coated amorphous microwires , 1999 .

[2]  Arcady Zhukov,et al.  Magnetic properties of glass-coated amorphous and nanocrystalline microwires , 1996 .

[3]  A. Zhukov,et al.  The remagnetization process in thin and ultra-thin Fe-rich amorphous wires , 1995 .

[4]  G. F. Taylor.  A Method of Drawing Metallic Filaments and a Discussion of their Properties and Uses , 1924 .

[5]  A. Hernando,et al.  Co-Si-B and Fe-Co-B amorphous alloys: Induced anisotropy and various magnetic properties , 1987 .

[6]  L. Kraus,et al.  Ferromagnetic resonance in amorphous alloys prepared by rapid quenching from the melt , 1976 .

[7]  J. Barandiaran,et al.  Metallic glasses and sensing applications , 1988 .

[8]  J. Barandiaran,et al.  Magnetoelastic behavior of glass-covered amorphous ferromagnetic microwire , 1997 .

[9]  L. V. Panina,et al.  Magneto‐impedance effect in amorphous wires , 1994 .

[10]  A. F. Prokoshin,et al.  Residual quenching stresses in glass-coated amorphous ferromagnetic microwires , 2000 .

[11]  A. Zhukov.  Glass-coated magnetic microwires for technical applications , 2002 .

[12]  A. Zhukov,et al.  Ferromagnetic resonance, magnetic behaviour and structure of Fe-based glass-coated microwires , 1999 .

[13]  F. Humphrey,et al.  Large Barkhausen and Matteucci Effects in FeCoSiB, FeCrSiB and FeNiSiB amorphous wires , 1990, International Conference on Magnetics.

[14]  A. Zhukov,et al.  Magnetoelastic anisotropy distribution in glass-coated microwires , 1996 .

[15]  Horia Chiriac,et al.  Magnetic properties and giant magnetoimpedance in a CoFeSiB glass-covered microwire , 2000 .

[16]  A. Zhukov,et al.  Induced magnetic anisotropy in Co–Mn–Si–B amorphous microwires , 2000 .