The Effect of the Induced Uniaxial Anisotropy on the Domain Wall Displacements and Magnetic Behavior of Ferromagnetic Cubic Solid Solutions

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概要

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• When a ferromagnetic cubic solid solution is heat-treated in the absence of external magnetic field, the uniaxial anisotropy is induced along magnetization vectors oriented in compliance with the domain distribution present during the heat-treatment. This induced uniaxial anisotropy affects the displacement of a domain wall, or stabilizes it, since the rotation of a magnetization vector within the domain wall from its original direction results an increase in the induced uniaxial anisotropy energy. The restoring force acting on the domain wall as a function of the wall displacement has been calculated for cubic solid solutions with various crystal lattices. The results of calculation lead us to the conclusions that the permeability in low fields may be reduced appreciably by the effect of domain wall stabilization and the peculiar magnetic properties such as exhibited by perminvars are quite common to annealed or slowly cooled cubic solid solutions in which the uniaxial anisotropy can be induced along the directions of easy magnetization. Further, the influence of heat-treatment on the magnetic properties of cubic solid solutions is discussed in terms of the stabilization of domain walls by the induced uniaxial anisotropy and a reference is also made to the permalloy problem.

• 東北大学の論文

著者

• Taniguchi Satoshi

  The Research Institute For Iron Steel And Other Metals

関連論文

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