Anisotropy and magnetization processes in Co-rich amorphous wires

被引:11
作者
Rouabhi, M
Cochrane, RW
Ménard, D
Britel, M
Ciureanu, P
Yelon, A
机构
[1] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada
[2] Univ Montreal, Grp Rech Phys & Technol Couches Minces, Montreal, PQ H3C 3J7, Canada
[3] Ecole Polytech, Dept Genie Phys, Grp Rech Phys & Techol Couches Minces, Montreal, PQ H3C 3A7, Canada
关键词
D O I
10.1063/1.369969
中图分类号
O59 [应用物理学];
学科分类号
摘要
Longitudinal magnetization curves and giant magnetoimpedance (GMI) analyses are combined to investigate the anisotropy and magnetization processes of dc-current-self-annealed Co68.15Fe4.35Se12.5B15 wires. The magnetization curves show an almost anhysteretic behavior with small Barkhausen jumps occurring at a critical field H*. This unusual shape is in very good agreement with the high resolution GMI response to the field, which reflects the circumferential bias permeability. Magnetization curves yield information on the bulk properties, while GMI allows the investigation of the surface region of the sample. The anisotropy constant is calculated using initial-magnetization curves and the resonance condition, yielding interesting conclusions concerning the inhomogeneity of the wires. (C) 1999 American Institute of Physics. [S0021-8979(99)15808-0].
引用
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页码:5441 / 5443
页数:3
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