Nonlinear Magnetoimpedance in Field- and Stress-Annealed Amorphous Ribbons

被引：6

作者：

Kraus, Ludek ^{[1
]}

机构：

[1] Acad Sci Czech Republ, Inst Phys, CZ-18221 Prague 8, Czech Republic

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2010年 / 46卷 / 02期

关键词：

Amorphous magnetic materials; magnetic anisotropy; magnetoimpedance; nonlinear effects; GIANT MAGNETOIMPEDANCE; WIRES; GMI;

D O I：

10.1109/TMAG.2009.2032836

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The diagonal and off-diagonal nonlinear magnetoimpedance in amorphous ribbons with well defined magnetic anisotropy is investigated. Field- and stress-annealing are used to produce easy-ribbon-axis and hard-ribbon-axis anisotropy, respectively. The dependence of the first three harmonic components of impedance on applied magnetic field and dc bias current is discussed. The symmetry properties of diagonal and off-diagonal impedance components as functions of applied magnetic field and dc bias current are substantially different. While all the components of diagonal impedance are mainly symmetric functions of field, the off-diagonal impedance is mainly antisymmetric. It is found that the odd harmonics of diagonal impedance can be related to the second harmonic of the off-diagonal impedance and vice versa. A theoretical explanation of the observed behavior, based on the symmetry properties of nonlinear Landau-Lifshitz-Gilbert equation, is proposed.

引用

页码：428 / 431

页数：4

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