Title :
Effect of annealing orientation on the giant magnetoimpedance in micro-patterned Co-based ribbon
Author :
Zhen Yang ; Yong Zhou ; Chong Lei ; Xue-Cheng Sun
Author_Institution :
Dept. of Microelectron. & Nanosci., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
Cobalt-based amorphous ribbons (Metglas® 2714A) were annealed treatment with an applied magnetic field. During annealing, the angle between the magnetic field axis and ribbon axis was designed for 0°, 30°, 60° and 90° respectively. MEMS technology was used to fabricate micro-patterned Co-based amorphous ribbons with a meander structure. The giant magnetoimpedance (GMI) effects were observed. The results showed magnetic field annealing treatment can improve the GMI ratio of the ribbon. With the increasing of the angle, the maximum GMI effect of the sample increased. When the angle was 90°, the maximum increment of GMI effect with 46.9 % was got.
Keywords :
amorphous magnetic materials; cobalt; giant magnetoresistance; magnetic annealing; magnetic fields; micromechanical devices; Co; GMI ratio; MEMS technology; Metglas 2714A; annealing orientation; cobalt-based amorphous ribbons; giant magnetoimpedance effects; magnetic field annealing treatment; magnetic field axis; micropatterning; Abstracts; Annealing; Frequency measurement; Laboratories; Micromechanical devices; Permeability measurement; Vehicles;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021510
