Giant magnetoimpedance effect in a positive magnetostrictive glass-coated amorphous microwire

2002 ◽  
Vol 65 (6) ◽  
Author(s):  
K. Mandal ◽  
S. Pan Mandal ◽  
M. Vázquez ◽  
S. Puerta ◽  
A. Hernando
Keyword(s):  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Amorphous Microwire

scholarly journals Analysis of current-density distribution and giant magnetoimpedance effect in composite wires

2006 ◽  
Vol 55 (4) ◽  
pp. 2014
Author(s):  
Liu Long-Ping ◽  
Zhao Zhen-Jie ◽  
Huang Can-Xing ◽  
Wu Zhi-Ming ◽  
Yang Xie-Long
Keyword(s):  
Density Distribution ◽  
Current Density ◽  
Current Density Distribution ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Composite Wires

scholarly journals Scattering of Microwaves by a Passive Array Antenna Based on Amorphous Ferromagnetic Microwires for Wireless Sensors with Biomedical Applications

Sensors ◽  
2019 ◽  
Vol 19 (14) ◽  
pp. 3060
Author(s):  
Alberto Moya ◽  
Diego Archilla ◽  
Elena Navarro ◽  
Antonio Hernando ◽  
Pilar Marín
Keyword(s):  
Biomedical Applications ◽  
High Sensitivity ◽  
Bias Field ◽  
Giant Magnetoimpedance ◽  
Scattering Parameter ◽  
Giant Magnetoimpedance Effect ◽  
Radiation Theory ◽  
Temperature Detector ◽  
Frequency Sweeps ◽  
Amorphous Microwires

Co-based amorphous microwires presenting the giant magnetoimpedance effect are proposed as sensing elements for high sensitivity biosensors. In this work we report an experimental method for contactless detection of stress, temperature, and liquid concentration with application in medical sensors using the giant magnetoimpedance effect on microwires in the GHz range. The method is based on the scattering of electromagnetic microwaves by FeCoSiB amorphous metallic microwires. A modulation of the scattering parameter is achieved by applying a magnetic bias field that tunes the magnetic permeability of the ferromagnetic microwires. We demonstrate that the OFF/ON switching of the bias activates or cancels the amorphous ferromagnetic microwires (AFMW) antenna behavior. We show the advantages of measuring the performing time dependent frequency sweeps. In this case, the AC-bias modulation of the scattering coefficient versus frequency may be clearly appreciated. Furthermore, this modulation is enhanced by using arrays of microwires with an increasing number of individual microwires according to the antenna radiation theory. Transmission spectra show significant changes in the range of 3 dB for a relatively weak magnetic field of 15 Oe. A demonstration of the possibilities of the method for biomedical applications is shown by means of wireless temperature detector from 0 to 100 °C.

Giant Magnetoimpedance in as Quenched Fe Based Nanocrystalline Ribbons

2005 ◽  
Vol 475-479 ◽  
pp. 2219-2222 ◽  
Author(s):  
Ji Fan Hu ◽  
Hong Wei Qin ◽  
Minhua Jiang ◽  
Bo Li ◽  
Dongliang Zhao ◽  
...  
Keyword(s):  
Grain Size ◽  
Magnetic Materials ◽  
Melt Spinning ◽  
Experimental Results ◽  
Soft Magnetic Materials ◽  
Soft Magnetic ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Additional Annealing ◽  
Melt Spinning Technique

FeCuNbSiB and FeZrBCu nanocrystalline ribbons can be obtained directly through the melt- spinning technique without additional annealing processes. The giant magnetoimpedance can be observed in FeCuNbSiB and FeZrBCu as quenched ribbons. The addition of Cu improves the nano-crystallization of a-Fe(Si) or a-Fe phase and reduces the grain size in FeCuNbSiB and FeZrBCu as quenched ribbons, which enhances the magnetoimpedance via increasing the variation of permeability under fields. The present experimental results reveal a novel route to fabricate the Fe based nanocrystalline soft magnetic materials with giant magnetoimpedance effect.

Influence of tensile stress on giant magnetoimpedance effect of electroplated Ni1−Co /Cu composite wires

2014 ◽  
Vol 616 ◽  
pp. 426-429 ◽  
Author(s):  
Juan Dong ◽  
Yi Zhang ◽  
Xinlei Zhang ◽  
Chenbo Zhao ◽  
Qingfang Liu ◽  
...  
Keyword(s):  
Tensile Stress ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Composite Wires

Domain wall permeability limit for the giant magnetoimpedance effect

2002 ◽  
Vol 91 (10) ◽  
pp. 7451 ◽  
Author(s):  
J. M. Barandiarán ◽  
A. Garcı́a-Arribas ◽  
J. L. Muñoz ◽  
G. V. Kurlyandskaya ◽  
R. Valenzuela
Keyword(s):  
Domain Wall ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Wall Permeability

scholarly journals High Frequency Behavior of La0.7Sr0.3MnO3 with Giant Magnetoimpedance Effect

2002 ◽  
Vol 43 (3) ◽  
pp. 523-525 ◽  
Author(s):  
Jifan Hu ◽  
Hongwei Qin ◽  
Juan Chen ◽  
Zhenxi Wang
Keyword(s):  
High Frequency ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect ◽  
Frequency Behavior

Giant Magnetoimpedance Effect Modified by Transverse Shape Anisotropy in Fe-Based Amorphous Ribbon

2020 ◽  
Vol 56 (7) ◽  
pp. 1-5
Author(s):  
Lei Ma ◽  
Chenbo Zhao ◽  
Chaozhong Li ◽  
Zhenlin Liu ◽  
Vincent Izerimana ◽  
...  
Keyword(s):  
Amorphous Ribbon ◽  
Shape Anisotropy ◽  
Giant Magnetoimpedance ◽  
Giant Magnetoimpedance Effect
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