Magneto-impedance effect in Co-based metallic glass ribbons

Rahman, I.Z.; Kamruzzaman, M.; Rahman, M. A.

doi:10.1016/j.jmatprotec.2004.04.107

Cited by 3 publications

(4 citation statements)

References 17 publications

(22 reference statements)

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“…From these figures, it is observed that the change in the MI increases until to the relaxation frequency corresponding to each composition, and then it diminishes when frequency increases. The increasing in the change MI ratios up to the relaxation frequency is due to the electromagnetic skin effect, as it was reported by Rahman in [23]. However, the decreasing of the change MI ratio above the relaxation frequency is related with the decreasing of the effective permeability, which is caused by the damping in the movement of the domain walls [12].…”

Section: Magnetic Materials 184mentioning

confidence: 52%

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Ávila¹,

Galán²,

Rosales‐Rivera³

2016

Magnetic Materials

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The study of Giant Magnetoimpedance (GMI) effect of the amorphous alloys system of Fe 72-x Co x Nb 6 B 10 Si 11 Cu 1 (for x = 35 and x = 40 at. percent Co) and AC magnetic susceptibility for the amorphous alloy of Fe 37 Co 35 Nb 6 B 11 Si 10 Cu 1 composition are presented in this chapter. The importance of GMI effect for the improvement of technological applications in sensor devices in amorphous magnetic Fe-and Co-based alloys is introduced; then it is described as the experimental procedure of magnetoimpedance and AC magnetic susceptibility measurements. The obtained results are discussed and finally the conclusions are presented.

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Section: Magnetic Materials 184mentioning

confidence: 52%

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Ávila¹,

Galán²,

Rosales‐Rivera³

2016

Magnetic Materials

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“…Many research results have confirmed that the MI effect is closely associated with soft magnetic properties of materials. Generally, an obvious MI effect can be observed in alloys with a relatively small coercivity H c [8,15,25]. Moreover, near zero magnetostriction λ s is also proved to be essential for the MI ratio [2,25,26].…”

Section: Discussionmentioning

confidence: 99%

“…Generally, an obvious MI effect can be observed in alloys with a relatively small coercivity H c [8,15,25]. Moreover, near zero magnetostriction λ s is also proved to be essential for the MI ratio [2,25,26]. Co-based amorphous alloys, which have been found to exhibit good soft magnetic properties and possess small negative magnetostriction, are excellent MI materials.…”

Section: Discussionmentioning

confidence: 99%

Influence of Fe on magnetoimpedance effect of Co_72−xFe_xZr₈B₂₀alloys

Zhang¹,

Lv²,

Liu³

et al. 2006

J. Phys. D: Appl. Phys.

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The magnetoimpedance (MI) of as-spun amorphous Co72−xFexZr8B20 (CFZB, x = 0, 2, 5, 7 at.%) alloys has been measured at a frequency ranging from 310 to 1110 kHz and a dc magnetic field between 0 to 70 Oe. The maximum MI ratio ΔZ/Z(%)max of the CFZB alloys increases with increasing frequency for each sample and decreases with the increment of Fe content at any frequency. The most drastic MI effect, the maximum value of about 90% at 1110 kHz accompanied by the field sensitivity of 18% Oe−1, is observed in CFZB without Fe. Magnetic measurements reveal that coercivity of CFZB decreases first and then increases with increasing Fe content, and the minimum value of about 1.6 Oe is obtained in the sample with x = 2 at.%. The permeability of CFZB was evaluated from quasi-static hysteresis loops, indicating that the Fe-free CFZB is of the largest permeability. Measurements on electrical resistivity suggest that the Fe-free sample possesses smaller resistivity while the sample with x = 7 at.% has a much larger resistivity compared with CFZB with 2 and 5 at.% Fe. The correlation between MI effect and magnetic properties together with electrical resistivity for the CFZB alloy is discussed in this paper.

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“…[4][5][6] However, there are few reports on the preparation technics of this alloy. As is known to all, the metalloid elements such as B, C, Si, P, etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of magnetic field annealing on soft magnetic properties of Co71Fe2Si14-xB9+xMn4 amorphous alloys with low permeability

Fan

Zhang

et al. 2017

AIP Advances

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The effect of transverse magnetic field annealing (TFA) on soft magnetic properties of Co71Fe2Si14-xB9+xMn4 amorphous alloys was investigated with the aim of reducing effective permeability (μe). It was revealed that the increasing B content improved thermal stability, increased saturation magnetic flux density (Bs) of as-quenched alloys, while the samples exhibited a slightly larger coercivity (Hc) when the atom percentages of Si and B were similar. Permeability decreased dramatically after TFA. The decrease of permeability mainly depended on annealing temperature and magnetic field intensity. Besides, flat hysteresis loops were obtained after TFA, Lorentz micrograph observation revealed the TFA sample exhibited denser magnetic domain walls, which confirmed it was more difficult to be saturated. The Co71Fe2Si9B14Mn4 alloy was successful prepared with low μe of 3020, low Hc of 1.7 A/m and high resistance to DC bias 6 times that of as-quenched alloy at the DC field of 300 A/m.

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Magneto-impedance effect in Co-based metallic glass ribbons

Cited by 3 publications

References 17 publications

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Influence of Fe on magnetoimpedance effect of Co_72−xFe_xZr₈B₂₀alloys

Effect of magnetic field annealing on soft magnetic properties of Co71Fe2Si14-xB9+xMn4 amorphous alloys with low permeability

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Magneto-impedance effect in Co-based metallic glass ribbons

Cited by 3 publications

References 17 publications

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Giant Magnetoimpedance Effect and AC Magnetic Susceptibility in Amorphous Alloys System of FeCoNbBSiCu

Influence of Fe on magnetoimpedance effect of Co72−xFexZr8B20alloys

Effect of magnetic field annealing on soft magnetic properties of Co71Fe2Si14-xB9+xMn4 amorphous alloys with low permeability

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Influence of Fe on magnetoimpedance effect of Co_72−xFe_xZr₈B₂₀alloys