Exchange bias model in ferromagnetic/antiferromagnetic bilayer with L1 2-type ordered antiferromagnet

C. Mitsumata; A. Sakuma; K. Fukamichi

doi:10.1109/TMAG.2005.855223

Exchange bias model in ferromagnetic/antiferromagnetic bilayer with L1 ₂-type ordered antiferromagnet

C. Mitsumata, A. Sakuma, K. Fukamichi

工学研究科・応用物理学専攻

研究成果: Article › 査読

2 被引用数 (Scopus)

抄録

The exchange bias of the ferromagnetic (FM) and antiferromagnetic (AFM) bilayer having L1₂-type ordered structure has been investigated within the framework of Heisenberg model. The triangle lattice of magnetic atoms in the AFM layer realizes the triangular spin structure due to geometrical spin frustrations. This noncollinear spin structure can bring about an exchange bias in the FM/AFM bilayer system. Under the influence of the exchange bias, the uncompensated spin element appears in the AFM layer, resulting in a shifted loop in magnetization curves, in accord with the measured loop by X-ray magnetic circular dichroism spectroscopy for an AFM layer.

本文言語	English
ページ（範囲）	2700-2702
ページ数	3
ジャーナル	IEEE Transactions on Magnetics
巻	41
号	10
DOI	https://doi.org/10.1109/TMAG.2005.855223
出版ステータス	Published - 2005 10月

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
電子工学および電気工学

文献へのアクセス

10.1109/TMAG.2005.855223

他のファイルとリンク

引用スタイル

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title = "Exchange bias model in ferromagnetic/antiferromagnetic bilayer with L1 2-type ordered antiferromagnet",

abstract = "The exchange bias of the ferromagnetic (FM) and antiferromagnetic (AFM) bilayer having L12-type ordered structure has been investigated within the framework of Heisenberg model. The triangle lattice of magnetic atoms in the AFM layer realizes the triangular spin structure due to geometrical spin frustrations. This noncollinear spin structure can bring about an exchange bias in the FM/AFM bilayer system. Under the influence of the exchange bias, the uncompensated spin element appears in the AFM layer, resulting in a shifted loop in magnetization curves, in accord with the measured loop by X-ray magnetic circular dichroism spectroscopy for an AFM layer.",

keywords = "Antiferromagnetic (AFM), Exchange bias, Exchange coupling, Heisenberg model, Noncollinear spin, Spin frustration, Spin structure",

author = "C. Mitsumata and A. Sakuma and K. Fukamichi",

year = "2005",

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doi = "10.1109/TMAG.2005.855223",

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T1 - Exchange bias model in ferromagnetic/antiferromagnetic bilayer with L1 2-type ordered antiferromagnet

AU - Mitsumata, C.

AU - Sakuma, A.

AU - Fukamichi, K.

PY - 2005/10

Y1 - 2005/10

N2 - The exchange bias of the ferromagnetic (FM) and antiferromagnetic (AFM) bilayer having L12-type ordered structure has been investigated within the framework of Heisenberg model. The triangle lattice of magnetic atoms in the AFM layer realizes the triangular spin structure due to geometrical spin frustrations. This noncollinear spin structure can bring about an exchange bias in the FM/AFM bilayer system. Under the influence of the exchange bias, the uncompensated spin element appears in the AFM layer, resulting in a shifted loop in magnetization curves, in accord with the measured loop by X-ray magnetic circular dichroism spectroscopy for an AFM layer.

AB - The exchange bias of the ferromagnetic (FM) and antiferromagnetic (AFM) bilayer having L12-type ordered structure has been investigated within the framework of Heisenberg model. The triangle lattice of magnetic atoms in the AFM layer realizes the triangular spin structure due to geometrical spin frustrations. This noncollinear spin structure can bring about an exchange bias in the FM/AFM bilayer system. Under the influence of the exchange bias, the uncompensated spin element appears in the AFM layer, resulting in a shifted loop in magnetization curves, in accord with the measured loop by X-ray magnetic circular dichroism spectroscopy for an AFM layer.

KW - Antiferromagnetic (AFM)

KW - Exchange bias

KW - Exchange coupling

KW - Heisenberg model

KW - Noncollinear spin

KW - Spin frustration

KW - Spin structure

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