Giant Magneto-Impedance of Co50 Ni22 Ga28 Alloy with High Chemical Ordering
WANG Yan-Guo, WANG Hai-Ying, DAI Xue-Fang, WU Guang-Heng, DUAN Xiao-Feng
Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
Giant Magneto-Impedance of Co50 Ni22 Ga28 Alloy with High Chemical Ordering
WANG Yan-Guo;WANG Hai-Ying;DAI Xue-Fang;WU Guang-Heng;DUAN Xiao-Feng
Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
关键词 ：
68.37.Ps ,
43.Qt ,
75.47.De ,
75.47.Np
Abstract ： The microstructure of Co50 Ni22 Ga28 ribbon with the L10 structure is examined. The band-like morphology is observed. These bands with the width in a range of 40--200nm appear along the transverse direction of the ribbon. The giant magnetoimpedance (GMI) effect in this alloy is measured. The results show that Co50 Ni22 Ga28 exhibits a sharp peak of the GMI effect. The maximum GMI ratio up to 360% is detected. The GMI effect measured versus temperature shows large jumps of the magnetoimpedance amplitude at the reversal martensitic transformation temperature 240°C and Curie temperature 375°C respectively. The jump ratios of the magnetoimpedance amplitude examined at these temperatures are about 5 and 10, respectively.
Key words ：
68.37.Ps
43.Qt
75.47.De
75.47.Np
出版日期: 2005-10-01
:
68.37.Ps
(Atomic force microscopy (AFM))
73
(Electronic structure and electrical properties of surfaces, interfaces, thin films, and low-dimensional structures)
43.Qt
75.47.De
(Giant magnetoresistance)
75.47.Np
(Metals and alloys)
75.60.Ej
(Magnetization curves, hysteresis, Barkhausen and related effects)
引用本文:
WANG Yan-Guo;WANG Hai-Ying;DAI Xue-Fang;WU Guang-Heng;DUAN Xiao-Feng. Giant Magneto-Impedance of Co50 Ni22 Ga28 Alloy with High Chemical Ordering[J]. 中国物理快报, 2005, 22(10): 2630-2632.
50 Ni22 Ga28 Alloy with High Chemical Ordering. Chin. Phys. Lett., 2005, 22(10): 2630-2632.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2005/V22/I10/2630
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