Giant magneto-impedance effect on nanocrystalline microwires with conductive layer deposit

Wang, R.L.; Zhao, Zhenjie; Liu, L.P.; Wen, Yuan; Yang, Xinliang

doi:10.1016/j.jmmm.2004.07.014

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…However, the results are just the opposite when the testing frequency is more than 60 MHz. The circumferential permeability changes due to the electromagnetic interaction between the copper layer and ferromagnetic core [16]. The above mentioned results show that the eddy current in the copper layer is induced by the electromagnetic interactions, though AC current flows only through the ferromagnetic core.…”

Section: Resultsmentioning

confidence: 93%

“…The detailed fabrication processes of two kinds of composition wires were reported in our previous work [16]. Firstly, the amorphous microwires of Fe 73.0 Cu 1.0 Nb 1.5 V 2.0 Si 13.5 B 9.0 were prepared by a glass-coated melt-spinning method [19].…”

Section: Methodsmentioning

confidence: 99%

“…The possible mechanism is enhancement of the skin effect due to electromagnetic interactions. If an insulator layer is added between two layers, composite wires with ferromagnetic core (CWFC) and composite wires with conductive core (CWCC) can be produced [16,17]. The GMI effect may be further enhanced if the thickness of the insulator is suitable for CWCC.…”

Section: Introductionmentioning

confidence: 99%

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Giant Magneto-impedance Effect in Composite Wires with Different Core Layer

et al. 2013

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Composite structure materials were potential sensing elements for magnetic sensors due to Giant magnetoimpedance (GMI) effect. Two kinds of composite wires with different magnetic/non-magnetic structures were fabricated by using electroless deposition methods and the magnetoimpedance properties were investigated. The maximum GMI ratio of 114% was acquired at 60 MHz in the composite wires with a ferromagnetic core, whereas, 116% of maximum GMI ratio was found in the composite wires with a conductive core at low frequency of 600 kHz. These results exhibit that the GMI ratio reaches the maximum when magnetoresistance ratio ΔR/R and magnetoinductance ratio ΔX/X make the comparative contributions to the total magnetoimpedance (MI). The obvious GMI effect obtained in the composite wires with conductive core frequency may provide a candidate for applications in magnetic sensors, especially at low frequencies.

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Section: Resultsmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Giant Magneto-impedance Effect in Composite Wires with Different Core Layer

et al. 2013

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show abstract

Section: Methodsmentioning

confidence: 99%

Giant Magneto-impedance Effect in Composite Wires with Different Core Layer

et al. 2013

View full text Add to dashboard Cite

Composite structure materials were potential sensing elements for magnetic sensors due to Giant magnetoimpedance (GMI) effect. Two kinds of composite wires with different magnetic/non-magnetic structures were fabricated by using electroless deposition methods and the magnetoimpedance properties were investigated. The maximum GMI ratio of 114% was acquired at 60 MHz in the composite wires with a ferromagnetic core, whereas, 116% of maximum GMI ratio was found in the composite wires with a conductive core at low frequency of 600 kHz. These results exhibit that the GMI ratio reaches the maximum when magnetoresistance ratio ∆R/R and magnetoinductance ratio ∆X/X make the comparative contributions to the total magnetoimpedance (MI). The obvious GMI effect obtained in the composite wires with conductive core frequency may provide a candidate for applications in magnetic sensors, especially at low frequencies.

show abstract