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Magnetization Reversal by Rotation

机译:旋转磁化反转

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摘要

The mechanism of magnetization reversal by simple rotation has been discussed by a number of authors, but a completely general analysis (applicable to a single‐domain ferromagnetic body of any type of anisotropy, with an applied field in an arbitrary direction) has not been given. The purpose of this paper is to present such an analysis. General differential equations are derived which can be used to describe the rotation process in any body for which demagnetization and anisotropy factors can be written. These equations are then applied to a sphere, a cylinder, and a thin sheet. Both uniaxial and cubic anisotropy are considered for the sphere and cylinder; only uniaxial anisotropy (the kind observed in deposited films) is considered for the thin sheet. The resulting differential equations can be solved numerically to obtain output voltages, switching times, and switching constants.
机译:许多作者已经讨论了通过简单旋转来反转磁化的机理,但是还没有给出完整的一般分析(适用于任何类型的各向异性的单畴铁磁体,并且在任意方向上施加了磁场) 。本文的目的是提出这样的分析。推导了一般的微分方程,可以用来描述任何物体的旋转过程,可以为它们写退磁和各向异性因子。然后将这些方程式应用于球体,圆柱体和薄板。球体和圆柱体都考虑了单轴和立方各向异性;薄片仅考虑单轴各向异性(在沉积膜中观察到的那种)。可以对所得的微分方程进行数值求解,以获得输出电压,开关时间和开关常数。

著录项

  • 来源
    《Journal of Applied Physics》 |1958年第3期|共3页
  • 作者

    Gillette P. R.; Oshima K.;

  • 作者单位

    Stanford Research Institute, Menlo Park, California;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
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