Giant magneto impedance in electroplated NiFeMo/Cu microwires

Velleuer, Jonathan; Muñoz, Ana; Yakabchuk, H.; Schiefer, C.; Hackl, Alfred; Kisker, E.

doi:10.1016/j.jmmm.2006.08.030

Cited by 21 publications

(10 citation statements)

References 36 publications

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“…1, 2 The galvanic deposition of soft magnetic alloys was considered in the last few years to be an excellent method to produce films with special anisotropic properties, crucial for obtaining a sensitive magnetoimpedance ͑MI͒ response. In a previous work, 16 we reported large GMI effects of NiFeMo/Cu electroplated microwires. Permalloy was mostly preferred due to its high permeability and MI effects, low magnetostriction, and excellent mechanical properties.…”

Section: Introductionmentioning

confidence: 70%

Anisotropic permeability in ultrasoft electroplated NiFeMo/Cu microwires: The Procopiu effect

Muñoz

Schiefer

Kisker

2008

Journal of Applied Physics

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The complex magnetoelastic behavior of electroplated NiFeMo/Cu microwires was analyzed by means of the magnetoimpedance and the Procopiu effects. Both phenomena are related through the circular magnetization generated by the ac and were modeled by assuming a magnetic domain and a magnetic relaxation model. From this analysis, information about the frequency and field dependencies of the circular and axial permeabilities was obtained. These results show that the magnetic anisotropy of Cu microwires galvanically coated with a NiFeMo film of 7 m in thickness is characterized by two circular permeability functions that are ascribed to different types of magnetic domains.

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Section: Introductionmentioning

confidence: 70%

Anisotropic permeability in ultrasoft electroplated NiFeMo/Cu microwires: The Procopiu effect

Muñoz

Schiefer

Kisker

2008

Journal of Applied Physics

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“…Recently, a series of papers have reported promising MI effects in non-magnetic microwires electroplated with CoP [13,14], CoFeNi [15][16][17][18], NiFe [19,20] and NiFeRu [21] alloys. In a previous work [22] we presented results that demonstrate the outstanding GMI behaviour on NiFeMo/Cu electroplated microwires. In this new report, which is a continuation of the work in [22], we analysed in more detail the influence of the fabrication parameters on the magnetic properties of coatings.…”

Section: Introductionmentioning

confidence: 89%

“…In a previous work [22] we presented results that demonstrate the outstanding GMI behaviour on NiFeMo/Cu electroplated microwires. In this new report, which is a continuation of the work in [22], we analysed in more detail the influence of the fabrication parameters on the magnetic properties of coatings.…”

Section: Introductionmentioning

confidence: 89%

Magneto impedance of electroplated NiFeMo/Cu microwires for magnetic sensors

Muñoz

Schiefer²,

Nentwig³

et al. 2007

J. Phys. D: Appl. Phys.

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The field and frequency dependences of the magnetic permeability in soft magnetic electroplated FeNiMo/Cu microwires were studied by means of their magneto impedance response. We analysed the influence of electroplating parameters such as current density, electrolyte composition and the presence of a magnetic field. It was found that the introduction of Mo as a third non-magnetic component causes large changes in the film permeability, which are associated with compositional and morphological effects. The electrodeposition under an external magnetic field induces a unidirectional anisotropy with the appearance of a large Barkhausen effect.

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“…Despite of the lower total value of the GMI effect and its sensitivity with respect to applied field, some studies were focused on the GMI features for the energy low consuming regimes, i.e. regimes with low intensities of the driving current [8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Electroplated wires are composite materials consisting of a conducting non-magnetic core and magnetically soft tube covering, which can be FeNi [4,10], FeCoNi [5,6], CoP [12,13], Co [14], NiFeMo [10], NiFeRu [15]. A wide variety of compositions of magnetic layer was investigated in order to obtain as high as possible values of the GMI variations and high values of sensitivity with respect to an external magnetic field.…”

Section: Introductionmentioning

confidence: 99%

Giant Magnetoimpedance of Cube/Feconi Electroplated Wires: Focus on Angular Sensoric

Kurlyandskaya¹,

Jantaratana²,

Cerdeira³

et al. 2013

WJCMP

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Giant magnetoimpedance effect (GMI) is a subject of special interest proved by applied electrodynamic and technological applications. GMI effect in ferromagnetic tubes is connected with the high sensitivity of the magnetic system to a circular magnetic field near the spin-reorientation magnetic phase transitions offering high sensitivity with respect to an external magnetic field. In this work the non-magnetic CuBe wires were covered by Fe 20 Co 6 Ni 74 layers by electrodeposition. The thickness of 1 μm for magnetic layer was high enough in order to ensure the high GMI value. Longitudinal magnetic anisotropy was induced by post preparation annealing in a magnetic field of 160 A/m at 320˚C during 1 hour in order to obtain appropriate magnetisation process. Angular dependencies of GMI were measured in a frequency range of 1 to 10 MHz for driving currents of 2.5 to 20 mA. High longitudinal GMI of the order of 400% was observed at quite low frequency of 1 MHz. The highest value of the sensitivity of 520%/Oe was found for the active resistance: Linear sensitivities of 0.023 Ω/˚ and 0.05 Ω/˚ were observed for reasonably low fields of 240 and 275 A/m respectively for small angles, where planar GMI elements are less effective.

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Giant magneto impedance in electroplated NiFeMo/Cu microwires

Cited by 21 publications

References 36 publications

Anisotropic permeability in ultrasoft electroplated NiFeMo/Cu microwires: The Procopiu effect

Anisotropic permeability in ultrasoft electroplated NiFeMo/Cu microwires: The Procopiu effect

Magneto impedance of electroplated NiFeMo/Cu microwires for magnetic sensors

Giant Magnetoimpedance of Cube/Feconi Electroplated Wires: Focus on Angular Sensoric

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