Generalized model of antiferromagnetic domain wall

C. Mitsumata; A. Sakuma

doi:10.1109/TMAG.2011.2158523

Generalized model of antiferromagnetic domain wall

C. Mitsumata, A. Sakuma

ENG - Applied Physics

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

7 Citations (Scopus)

Abstract

A novel model of the magnetic domain wall is obtained in order to consider its arbitrary spin structure including the ferromagnetic and antiferromagnetic spin system. The width Δ of a magnetic domain wall is given by Δ=√A|cosθ|K, where A and K are the exchange stiffness and the magnetic anisotropy constants, respectively. In this equation, the factor √|cosθ| is projected to the spin structure, where θ represents the angle between the nearest neighboring spins. Thus, the width of the magnetic domain wall is possibly reduced considering the finite value of angle θ in an antiferromagnet compared with the width of a ferromagnetic domain wall.

Original language	English
Article number	6028086
Pages (from-to)	3501-3504
Number of pages	4
Journal	IEEE Transactions on Magnetics
Volume	47
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2011.2158523
Publication status	Published - 2011 Oct 1

Keywords

Antiferromagnetic
domain wall width
magnetic domain wall
noncollinear spin structure

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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AU - Sakuma, A.

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N2 - A novel model of the magnetic domain wall is obtained in order to consider its arbitrary spin structure including the ferromagnetic and antiferromagnetic spin system. The width Δ of a magnetic domain wall is given by Δ=√A|cosθ|K, where A and K are the exchange stiffness and the magnetic anisotropy constants, respectively. In this equation, the factor √|cosθ| is projected to the spin structure, where θ represents the angle between the nearest neighboring spins. Thus, the width of the magnetic domain wall is possibly reduced considering the finite value of angle θ in an antiferromagnet compared with the width of a ferromagnetic domain wall.

AB - A novel model of the magnetic domain wall is obtained in order to consider its arbitrary spin structure including the ferromagnetic and antiferromagnetic spin system. The width Δ of a magnetic domain wall is given by Δ=√A|cosθ|K, where A and K are the exchange stiffness and the magnetic anisotropy constants, respectively. In this equation, the factor √|cosθ| is projected to the spin structure, where θ represents the angle between the nearest neighboring spins. Thus, the width of the magnetic domain wall is possibly reduced considering the finite value of angle θ in an antiferromagnet compared with the width of a ferromagnetic domain wall.

KW - Antiferromagnetic

KW - domain wall width

KW - magnetic domain wall

KW - noncollinear spin structure

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Generalized model of antiferromagnetic domain wall

Abstract

Keywords

ASJC Scopus subject areas

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