The theory of inhomogeneous nucleation in uniaxial ferromagnets

A. Sakuma

doi:10.1016/0304-8853(90)90660-I

The theory of inhomogeneous nucleation in uniaxial ferromagnets

A. Sakuma

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The nucleation field in a system with a planar magnetic defect in uniaxial ferromagnetic host matrices has been evaluated by taking both the first and the second anisotropy constants, K₁ and K₂, into account. In the case where the nonlinearity of the micromagnetic equation acts on the nucleation process, the inhomogeneous nucleation field is increased due to the K₂ term, even though K₁ > 4K₂ holds. The effects of carting of the magnetization due to K₁ < 4K₂ has also been discussed.

Original language	English
Pages (from-to)	369-375
Number of pages	7
Journal	Journal of Magnetism and Magnetic Materials
Volume	88
Issue number	3
DOIs	https://doi.org/10.1016/0304-8853(90)90660-I
Publication status	Published - 1990 Aug
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/0304-8853(90)90660-I

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abstract = "The nucleation field in a system with a planar magnetic defect in uniaxial ferromagnetic host matrices has been evaluated by taking both the first and the second anisotropy constants, K1 and K2, into account. In the case where the nonlinearity of the micromagnetic equation acts on the nucleation process, the inhomogeneous nucleation field is increased due to the K2 term, even though K1 > 4K2 holds. The effects of carting of the magnetization due to K1 < 4K2 has also been discussed.",

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AB - The nucleation field in a system with a planar magnetic defect in uniaxial ferromagnetic host matrices has been evaluated by taking both the first and the second anisotropy constants, K1 and K2, into account. In the case where the nonlinearity of the micromagnetic equation acts on the nucleation process, the inhomogeneous nucleation field is increased due to the K2 term, even though K1 > 4K2 holds. The effects of carting of the magnetization due to K1 < 4K2 has also been discussed.

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The theory of inhomogeneous nucleation in uniaxial ferromagnets

Abstract

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