Giant magnetoimpedance effect and voltage response in meander shape Co-based ribbon

被引：22
|
作者：
Chen, Lei [1 ]
Zhou, Yong [1 ]
Lei, Chong [1 ]
Zhou, Zhi-Min [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Natl Key Lab Nano Micro Fabricat Technol, Key Lab Thin Film & Microfabricat, Inst Micro Nano Sci & Technol,Minist Educ, Shanghai 200240, Peoples R China
来源：
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2010年 / 98卷 / 04期
关键词：
MAGNETO-IMPEDANCE; AMORPHOUS RIBBONS; FILMS; WIRES; PERMEABILITY; ENHANCEMENT; ANISOTROPY; ELEMENT; SENSOR;
D O I：
10.1007/s00339-010-5553-z
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Field-annealed Co-based amorphous ribbon (Metglas(A (R)) 2705M) with a meander structure is fabricated by MEMS technology and the giant magnetoimpedance (GMI) effects are studied at different magnetic fields and frequencies. The maximum longitudinal GMI ratio of the ribbon is 193.7% and the magnetic field sensitivity is 17.4%/Oe. The maximum GMI ratio of the meander ribbon is much larger than the single strip ribbon mainly due to the larger change ratio of inductance L. The sensitivity of an output U reach up to 10 V/A and U thermal fluctuation is less than 15 mV in the temperature range of -20 to 40A degrees C. This meander shape ribbon can be considered as a good candidate for the GMI-based sensor fabrication.
引用
收藏
页码：861 / 865
页数：5
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