Results 171 to 180 of about 798 (204)

Influence of Measurement Parameters on Giant Magnetoimpedance

2016
In this chapter, the influences of the measurement parameters (e.g. alternating current, dc magnetic field, frequency, and temperature) on giant magnetoimpedance (GMI) have been systematically analysed and clarified.
Hua-Xin Peng, Faxiang Qin, Manh-Huong Phan   +2 more
openaire   +1 more source

Origin of linear and nonlinear giant magnetoimpedance

Physica A: Statistical Mechanics and its Applications, 1997
Abstract It has gradually become clear that giant magnetoimpedance, which initially appeared very mysterious, can be explained classically, as arising from the dependence of skin depth upon the magnetic permeability. As the permeability may vary with dc field or with frequency, the impedance will vary as a function of these parameters.
A. Yelon, M. Britel, D. Menard, P. Ciureanu   +3 more
openaire   +1 more source

Giant magnetoimpedance in a cylindrical magnetic conductor

Journal of Applied Physics, 1998
A rigorous treatment of the giant magnetoimpedance (GMI) in soft magnetic wires is presented. A small-signal approximation is used for a cylindrical magnetic conductor which is saturated along its axis by a static magnetic field. The general analysis of GMI includes a discussion of the influence of different parameters on the GMI and of how the ...
D. Ménard, M. Britel, P. Ciureanu, A. Yelon   +3 more
openaire   +2 more sources

Giant magnetoimpedance effect in sandwiched films

Journal of Applied Physics, 1999
The giant magnetoimpedance (GMI) effect in films with a sandwiched structure has been studied. FeNiCrSiB/Cu/FeNiCrSiB sandwiched films with a magnetic closed-loop structure were deposited onto a glass substrate by rf sputtering and then annealed at an optimum temperature.
Shu-qin Xiao, Yi-hua Liu, You-yong Dai, Lin Zhang, Shao-xiong Zhou, Guo-dong Liu   +5 more
openaire   +1 more source

Optimization of the magnetic noise and sensitivity of giant magnetoimpedance sensors

Journal of Applied Physics, 2008
The performance of magnetic field sensors based upon the giant magnetoimpedance (GMI) effect in soft magnetic wires is investigated in the MHz frequency range. The performance of the sensor is based on its sensitivity, voltage noise level and (voltage) noise-to-sensitivity ratio, or intrinsic magnetic noise level.
L. G. C. Melo, D. Ménard, A. Yelon, L. Ding, S. Saez, C. Dolabdjian   +5 more
openaire   +2 more sources

Giant magnetoimpedance, skin depth, and domain wall dynamics

IEEE Transactions on Magnetics, 2002
Summary form only given, as follows. Giant magnetoimpedance (GMI) has raised a strong interest due to its technological applications in magnetic field and dc current sensors. In this work, a detailed analysis of the impedance response of a typical material (CoFeBSi amorphous wires with high circumferential permeability and low negative magnetostriction)
R. Valenzuela, I. Betancourt
openaire   +1 more source

Giant magnetoimpedance for biosensing: Advantages and shortcomings

Journal of Magnetism and Magnetic Materials, 2009
Biosensors are an important area of modern sensor applications. Magnetoimpedance (MI) phenomenon was proposed for biosensing in 2003. Since that MI biosensor prototypes based on amorphous ribbons, multilayered structures, amorphous rapidly quenched wires and glass covered microwires were designed and tested.
openaire   +1 more source

Giant magnetoimpedance and permeability in CoFeNiSiB amorphous ribbon

Journal of Physics D: Applied Physics, 2000
In the present work, the effect of longitudinal and transverse magnetoimpedances connected with the transverse permeability and longitudinal permeability for amorphous ribbons of CoFeNiSiB has been investigated in detail. Our results strongly show that there exists a correlation between the magnetic field dependences of the magnetoimpedance and the ...
Jifan Hu, Liansheng Zhang, Hongwei Qin, Yizhong Wang, Zhenxi Wang, S X Zhou   +5 more
openaire   +1 more source

Giant magnetoimpedance effect in Fe79.5P12C6Mo0.5Cu0.5Si1.5 nanocrystalline ribbons

Materials Science and Engineering: B, 2001
Abstract Nanocrystalline structure was observed in Fe 79.5 P 12 C 6 Mo 0.5 Cu 0.5 Si 1.5 ribbons after annealed at temperatures from 350 to 500°C. After annealed at 350°C, the ribbon Fe 79.5 P 12 C 6 Mo 0.5 Cu 0.5 Si 1.5 consists of nanoparticles bcc α-Fe(Si, C) and amorphous matrix.
Jifan Hu, Hongwei Qin, Shaoxiong Zhou, Yizhong Wang, Zhenxi Wang   +4 more
openaire   +1 more source

Giant magnetoimpedance effects in the amorphous ribbon Fe8.0Co62.4Mn0.5Mo0.6Ni0.5Si14.7B13.3

Materials Science and Engineering: B, 1999
Abstract In the present work, the experimental results indicate that both resistive and inductive components of the impedance for the ribbon Fe8.0Co62.4Mn0.5Mo0.6Ni0.5Si14.7B13.3 are influenced strongly by the frequency of the ac drive current and dc magnetic fields in the longitudinal and transversal direction, respectively.
Jifan Hu, Shaoxiong Zhou, Lihua Zhang, Hongxia Wang   +3 more
openaire   +1 more source