Low-field non-resonant microwave absorption in glass-coated Co-rich microwires

被引:3
|
作者
Valenzuela, Raul [1 ]
Montiel, Herlinda [2 ]
Alvarez, Guillermo [1 ]
Zamorano, Rafael [3 ]
机构
[1] Univ Nacl Autonoma Mexico, Dept Mat Met & Ceram, Mexico City 04510, DF, Mexico
[2] Univ Nacl Autonoma Mexico, Depto Tecnociencias, Ctr Ciencias Aplicadas & Desarrollo Tecnol, Mexico City 04510, DF, Mexico
[3] Inst Politecn Nacl, Escuela Super Fis & Matemat, Depto Ciencias Mat, Mexico City 07738, DF, Mexico
关键词
AMORPHOUS MICROWIRES; MAGNETIC-MATERIALS; POWER ABSORPTION; COVERED WIRES; MAGNETOIMPEDANCE; RATIO; GHZ;
D O I
10.1002/pssa.200881268
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A study of low-field non-resonant microwave absorption (LFA) at 9.8 GHz, on as-cast amorphous Co-rich CoFeBSi microwires under different measuring geometries is presented. Results confirm that LFA is associated with the magnetization processes from the unmagnetized state (H-DC = 0) to the saturated condition, in many aspects similar to Giant Magnetoimpedance (GMI), and clearly different from ferromagnetic resonance (FMR). LFA signal showed large variations in its maximum-minimum separation as a function of the measuring geometry, which is interpreted in terms of the total anisotropy in the process. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
引用
收藏
页码:652 / 655
页数:4
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