Generation of strong inhomogeneous stray fields by high-anisotropy permanent magnets

被引：14
|
作者：
Samofalov, VN
Ravlik, AG
Belozorov, DP
Avramenko, BA
机构：
[1] Natl Tech Univ, Kharkov Polytech Inst, UA-61002 Kharkov, Ukraine
[2] NAS Ukraine, Ctr Nat Sci, Kharkov Phys & Technol Inst, UA-61108 Kharkov, Ukraine
来源：
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 281卷 / 2-3期
关键词：
permanent magnet; kittel domain structure; stray field; demagnetizing field; giant anisotropy; high-gradient field; saturation magnetization; coercive force; GMR sensor;
D O I：
10.1016/j.jmmm.2004.04.122
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Magnetic stray fields for systems of permanent magnets with high magnetic anisotropy are calculated and measured. It is shown that intensity of these fields exceeds value of an induction of a material of magnets in some time. Besides, these fields are characterized by high gradients, and size HdelH can reach values up to 10(10)-10(11) Oe(2)/cm. Estimations of extremely achievable fields and their gradients are made. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：326 / 335
页数：10
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