How do magnetic microwires interact magnetostatically?

被引：10
|
作者：
Pereira, A. [1 ]
Denardin, J. C. [1 ]
Escrig, J. [1 ]
机构：
[1] Univ Santiago Chile, Dept Fis, Santiago 9170124, Chile
来源：
JOURNAL OF APPLIED PHYSICS | 2009年 / 105卷 / 08期
关键词：
amorphous magnetic materials; Barkhausen effect; boron alloys; exchange interactions (electron); ferromagnetic materials; iron alloys; magnetic hysteresis; magnetisation reversal; silicon alloys;
D O I：
10.1063/1.3098250
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The magnetostatic interaction between two ferromagnetic microwires is calculated as a function of their geometric parameters and compared with those measured through magnetic hysteresis loops of glass-coated amorphous Fe77.5Si7.5B15 microwires. The hysteresis loops are characterized by well-defined Barkhausen jumps corresponding each to the magnetization reversal of individual microwires, separated by horizontal plateaux. It is shown that the magnetostatic interaction between them is responsible for the appearance of these plateaux. Finally, using the expression for the magnetostatic interaction is trivial to obtain the interacting force between microwires. Our results are intended to provide guidelines for the use of these microwires with technological purpose such as the fabrication of magnetic sensors.
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页数：4
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