A GENERALIZATION OF THE DEMAGNETIZING TENSOR FOR NONUNIFORM MAGNETIZATION

被引：199
|
作者：
NEWELL, AJ
WILLIAMS, W
DUNLOP, DJ
机构：
[1] UNIV TORONTO, DEPT PHYS, GEOPHYS LAB, TORONTO M5S 1A7, ONTARIO, CANADA
[2] UNIV EDINBURGH, DEPT GEOL & GEOPHYS, EDINBURGH EH7 3JW, SCOTLAND
来源：
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH | 1993年 / 98卷 / B6期
关键词：
D O I：
10.1029/93JB00694
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The demagnetizing tensor for ferromagnets is generalized to include interactions between uniformly magnetized bodies. This ''mutual'' demagnetizing tensor is symmetric, has a trace of zero, and has other simple geometric properties. The tensor is then used to develop an expression for the macroscopic magnetic field in non-uniformly magnetized bodies of arbitrary shape. Finally, the theory is applied to a block model of magnetization and explicit formulae for the tensor components are given.
引用
收藏
页码：9551 / 9555
页数：5
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