A comparative ab initio study on electric-field dependence of magnetic anisotropy in MgO/Fe/Pt and MgO/Fe/Au films

被引：33

作者：

Tsujikawa, M. ^{[1
]}

Haraguchi, S. ^{[1
]}

Oda, T. ^{[2
]}

Miura, Y. ^{[3
,4
]}

Shirai, M. ^{[3
,4
]}

机构：

[1] Kanazawa Univ, Grad Sch Nat Sci & Technol, Kanazawa, Ishikawa 9201192, Japan

[2] Kanazawa Univ, Inst Sci & Engn, Kanazawa, Ishikawa 9201192, Japan

[3] Tohoku Univ, RIEC, Sendai, Miyagi 9808577, Japan

[4] Tohoku Univ, CSIS, Sendai, Miyagi 9808577, Japan

来源：

JOURNAL OF APPLIED PHYSICS | 2011年 / 109卷 / 07期

关键词：

MAGNETOCRYSTALLINE ANISOTROPY; MANIPULATION;

D O I：

10.1063/1.3540677

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have investigated the electric field (EF) effect on the magnetic anisotropy energy (MAE) in thin films MgO/Fe/M(001) (M = Au and Pt) by means of first-principles density-functional calculations. The EF dependence of the MAE is enhanced significantly in the film with the Pt substrate compared to that with the Au substrate. This enhancement is attributed to the EF-induced hybridization between Fe 3d- and Pt 5d-orbitals. This implies that the Pt layer stacked on the magnetic layer strengthens the sensitivity of devices for bias-voltage-induced magnetic control. (C) 2011 American Institute of Physics. [doi:10.1063/1.3540677]

引用

页数：3

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