On the Barkhausen Jumps in the Course of Magnetic After-Effect.

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概要

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• When a magnetic field applied to a ferromagnetic substance suddenly changes, its magnetization instantly approaches a final equilibrium value. However, small changes of magnetization follow even after the change of magnetic field is quite completed. This phenomenon is known as magnetic aftereffect. Based upon recent tbeories on the mechanism of magnetization, retardation of the displacement of magnetic domain boundaries has been taken into account in a discussion of this phenomenon. In explaining magnetic after-effect, only gradual changes of magnetization are discussed, but it is not yet clear whether this change is really continnous or not. The present writer has detected discontinuous changes of magnetization (Barkhausen jump) in the course of magnetic after-effect under magnetizations; in this paper a method and results of measurement of the discontinuous change of magnetization in the course of magnetic after-effect are described, and a discussion on the mechanism of magnetic after-effect is given based upon the results obtained.

• 社団法人日本物理学会の論文

著者

• Huzimura Takasi

  The Research Institute For Iron Steel And Other Metals

関連論文

• Magnetic After-Effect. II
• Law of the Approach to Magnetic Saturation
• On the Displacement Velocity of a Magnetic Domain Boundary by a Large Barkhausen Jump in a Ferromagnetic Substance.
• On the Barkhausen Jumps in the Course of Magnetic After-Effect.
• Elastic After-Effect

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