Asymmetric Giant Magnetoimpedance in Stress-Field Annealed CoFeBSi Amorphous Ribbons

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F05%3A03109001" target="_blank" >RIV/68407700:21230/05:03109001 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Asymmetric Giant Magnetoimpedance in Stress-Field Annealed CoFeBSi Amorphous Ribbons
Original language description
Asymmetric GMI in amorphous Co66Fe4B15Si15 ribbons is investigated. The asymmetry comes from a ferromagnetic exchange coupling of the soft magnetic amorphous phase with a magnetically harder surface crystalline layer. In magnetic fields larger then the coercive field of the exchange bias layer (about 50 Oe) the asymmetry of GMI curve can be reversed. Hard ribbon axis anisotropy, induced in amorphous phase by the stress/field annealing, can be changed to the easy axis one by applying tensile stress. Thenthe originally double-peak GMI curve changes to an asymmetric single-peak one with an extremely high-field sensitivity (about 3400%/Oe) at the transition.
Czech name
Asymetrický magneto-impedanční jev v polem žíhaném Co66Fe4B15Si15 amorfním pásku
Czech description
Článek se zabývá nesymetrickou GMI odezvou žíhaného amorfního pásku s magneticky tvrdou krystalickou vrstvou na povrchu.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JB - Sensors, detecting elements, measurement and regulation
OECD FORD branch
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Publication year
2005
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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