Spin accumulation and resistance due to a domain wall

J. Ieda; S. Takahashi; M. Ichimura; H. Imamura; S. Maekawa

doi:10.1016/j.jmmm.2006.10.989

Spin accumulation and resistance due to a domain wall

J. Ieda, S. Takahashi, M. Ichimura, H. Imamura, S. Maekawa

金属材料研究所・材料物性研究部

研究成果: Article › 査読

5 被引用数 (Scopus)

抄録

Spin accumulation around a domain wall within a ferromagnetic nano-wire under a finite current is investigated. Equations of motion for the total magnetic moment and the spin accumulation are derived to study dynamics of the slowly varying fields. It is shown that the spin accumulation produces extra resistance as is common with the giant magnetoresistance. The excess resistance decreases as a function of the ratio of the wall width to the spin diffusion length and agrees well with recent experiments.

本文言語	English
ページ（範囲）	2058-2060
ページ数	3
ジャーナル	Journal of Magnetism and Magnetic Materials
巻	310
号	2 SUPPL. PART 3
DOI	https://doi.org/10.1016/j.jmmm.2006.10.989
出版ステータス	Published - 2007 3月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学

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10.1016/j.jmmm.2006.10.989

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title = "Spin accumulation and resistance due to a domain wall",

abstract = "Spin accumulation around a domain wall within a ferromagnetic nano-wire under a finite current is investigated. Equations of motion for the total magnetic moment and the spin accumulation are derived to study dynamics of the slowly varying fields. It is shown that the spin accumulation produces extra resistance as is common with the giant magnetoresistance. The excess resistance decreases as a function of the ratio of the wall width to the spin diffusion length and agrees well with recent experiments.",

keywords = "Domain walls, Magnetoresistance, Spin accumulation, Spin relaxation, Spin transfer",

author = "J. Ieda and S. Takahashi and M. Ichimura and H. Imamura and S. Maekawa",

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T1 - Spin accumulation and resistance due to a domain wall

AU - Ieda, J.

AU - Takahashi, S.

AU - Ichimura, M.

AU - Imamura, H.

AU - Maekawa, S.

PY - 2007/3

Y1 - 2007/3

N2 - Spin accumulation around a domain wall within a ferromagnetic nano-wire under a finite current is investigated. Equations of motion for the total magnetic moment and the spin accumulation are derived to study dynamics of the slowly varying fields. It is shown that the spin accumulation produces extra resistance as is common with the giant magnetoresistance. The excess resistance decreases as a function of the ratio of the wall width to the spin diffusion length and agrees well with recent experiments.

AB - Spin accumulation around a domain wall within a ferromagnetic nano-wire under a finite current is investigated. Equations of motion for the total magnetic moment and the spin accumulation are derived to study dynamics of the slowly varying fields. It is shown that the spin accumulation produces extra resistance as is common with the giant magnetoresistance. The excess resistance decreases as a function of the ratio of the wall width to the spin diffusion length and agrees well with recent experiments.

KW - Domain walls

KW - Magnetoresistance

KW - Spin accumulation

KW - Spin relaxation

KW - Spin transfer

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JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 3

ER -

Spin accumulation and resistance due to a domain wall

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