Longitudinally driven giant magneto-impedance effect enhancement by magneto-mechanical resonance

Gong, W.Y.; Wu, Zhiming; Lin, Hechun; Yang, Xinliang; Zhao, Zhenjie

doi:10.1016/j.jmmm.2008.01.020

Cited by 14 publications

(3 citation statements)

References 12 publications

(10 reference statements)

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“…Applied load can result in the changes of the domain structure and therefore the internal magnetic field of ferromagnetic materials due to the magneto-mechanical effect, which is of growing interest of researchers [4][5][6][7], so it is possible to evaluate stress concentration, which is the ratio of the local stress under external load to the nominal stress, by means of detecting magnetic behavior.…”

Section: Introductionmentioning

confidence: 99%

Metal magnetic memory effect caused by static tension load in a case-hardened steel

Shi

Dong²,

Xu³

et al. 2010

Journal of Magnetism and Magnetic Materials

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Section: Introductionmentioning

confidence: 99%

Metal magnetic memory effect caused by static tension load in a case-hardened steel

Shi

Dong²,

Xu³

et al. 2010

Journal of Magnetism and Magnetic Materials

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“…Although the GMI sensors have assured great success in various applications, there is still a need in improving their performance. A new method to enhance longitudinally driven giant magneto-impedance (LDGMI) effect of Fe-based magnetic materials was developed by utilizing magneto-elastic resonance [11]. It has also been reported that the LDGMI effect could be enhanced with the general thermal treatment at 753K due to the increase of magnetic softness in the Fe-based amorphous ribbons [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of Magneto-Thermal Treatments on Longitudinally Driven Giant Magneto-Impedance Effect in Co-Fe-Si-B Amorphous Ribbons

Lin

Wang

et al. 2014

AMR

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Co64Fe4Si14.5B14.5amorphous ribbon was fabricated by the melt-spinning technique. Soft magnetic properties of the ribbon were improved by annealing at 623K for 1 hour with a zero magnetic field, a 50mT longitudinal or transverse external magnetic field comparing with the as-quenched ribbon. The longitudinally driven giant magneto-impedance (LDGMI) effect and its field sensitivity (ξ) have been investigated in the frequency (f) range of 1kHz~1MHz. It is found that at f=51kHz, the LDGMI effect and ξ reach the largest values for the sample annealed with a longitudinal magnetic field.

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“…Giant magneto impedance (GMI) effect is the sensitive change in the AC impedance of ferromagnetic materials subjected to an external DC magnetic field [1,2]. GMI effect has attracted much attention from research community in recent years because of its great potential applications in sensors and magnetic recording [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of DC-Joule Heat on Giant Magneto-Impedance of Co-Based Melt Extraction Wires

Zhang

Xing

Wang

et al. 2009

AMR

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Co68.25Fe4.5Si12.25B15 naked amorphous wires of 60μm in diameter are prepared by melt extraction technology and annealed by DC-Joule heat at current from 40mA to 250mA for 10min. Impedance response is measured at low frequencies(≤13MHz) using HP4192 impedance analyzer. We get better GMI effect by heating wires at 60mA and 180mA.The connection between GMI response and transformation of structure under different heat current has been discussed. After proper heat treatment, magneto impedance response is strong even at 0.5MHz with GMI amplitude of 193.1% and field sensitivity of 59.4%/Oe. The maximum △Z/Z reaches 476.9% and the largest field sensitivity is up to 91.8%/Oe. These results indicate proper annealed Co-based melt extraction wires are suitable for high sensitivity sensor applications.

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Longitudinally driven giant magneto-impedance effect enhancement by magneto-mechanical resonance

Cited by 14 publications

References 12 publications

Metal magnetic memory effect caused by static tension load in a case-hardened steel

Metal magnetic memory effect caused by static tension load in a case-hardened steel

Influence of Magneto-Thermal Treatments on Longitudinally Driven Giant Magneto-Impedance Effect in Co-Fe-Si-B Amorphous Ribbons

Influence of DC-Joule Heat on Giant Magneto-Impedance of Co-Based Melt Extraction Wires

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