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
相关论文
共 50 条
  • [1] Nonuniform demagnetizing field and magnetization in element of patterned NiFe films
    Zhai, Y. (yrlu@public1.ptt.js.cn), 1600, American Institute of Physics Inc. (93):
  • [2] Nonuniform demagnetizing field and magnetization in element of patterned NiFe films
    Zhai, Y
    Li, J
    Yan, Y
    Zhang, XY
    Lu, M
    Zhai, HR
    Shi, J
    JOURNAL OF APPLIED PHYSICS, 2003, 93 (10) : 7598 - 7600
  • [3] The demagnetizing field of a nonuniform rectangular prism
    Smith, A.
    Nielsen, K. K.
    Christensen, D. V.
    Bahl, C. R. H.
    Bjork, R.
    Hattel, J.
    JOURNAL OF APPLIED PHYSICS, 2010, 107 (10)
  • [4] DEMAGNETIZING FIELDS OF INHOMOGENEOUS INDUCED MAGNETIZATION
    VOGEL, A
    NATURE, 1962, 196 (4861) : 1279 - &
  • [5] DETERMINATION OF ANHYSTERETIC MAGNETIZATION IN PRESENCE OF A DEMAGNETIZING FIELD
    DURUPT, S
    GAVOILLE, G
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1975, 31 (02): : K99 - K102
  • [6] EFFECT OF INHOMOGENEOUS DEMAGNETIZING FIELDS ON MAGNETIZATION MEASUREMENTS
    BRUG, J
    WOLF, WP
    JOURNAL OF APPLIED PHYSICS, 1982, 53 (11) : 7978 - 7978
  • [7] Geometries with the demagnetizing energy independent of the direction of magnetization
    Sakurai, Shigeo
    Soda, Naoya
    Kobayashi, Masanori
    Rowlands, G.
    IEEE TRANSACTIONS ON MAGNETICS, 2007, 43 (03) : 982 - 991
  • [8] Demagnetizing Factors for Nonuniform Nonlinear Cylinders and Rectangular Prisms
    Farahani, Alireza V.
    Konrad, Adalbert
    IEEE TRANSACTIONS ON MAGNETICS, 2008, 44 (11) : 3225 - 3228
  • [9] Volume average demagnetizing tensor of rectangular prisms
    Fukushima, H
    Nakatani, Y
    Hayashi, N
    IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (01) : 193 - 198
  • [10] REPTATION OF MAGNETIZATION IN INTRINSIC DEMAGNETIZING FIELD OF A FERROMAGNETIC FILM
    OSUKHOVS.VE
    SHASHKOV, AG
    PHYSICS OF METALS AND METALLOGRAPHY-USSR, 1969, 27 (02): : 26 - &
12345