Room-temperature perpendicular magnetic anisotropy of MgO/Fe/MgO ultrathin films

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作者：
Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland [1 ]
不详 [2 ]
不详 [3 ]
不详 [4 ]
机构：
[1] Koziol-Rachwal, A.
[2] Skowroński, W.
[3] Ślȩzak, T.
[4] Wilgocka-Ślȩzak, D.
[5] Przewoźnik, J.
[6] Stobiecki, T.
[7] Qin, Q.H.
[8] Van Dijken, S.
[9] 1,Korecki, J.
来源：
| 1600年 / American Institute of Physics Inc.卷 / 114期
关键词：
We used the anomalous Hall effect to study the magnetic properties of MgO/Fe(t)/MgO(001) structures in which the Fe thickness t ranged from 4 Å to 14 Å. For the iron deposited at 140 K; we obtained perpendicular magnetization at room temperature below the critical thickness of tc = (9 ± 1) Å. In the vicinity of tc; the easy magnetization axis switched from an out-of-plane orientation to an in-plane orientation; and the observed spin-reorientation transition was considered in terms of the competition among different anisotropies. The perpendicular magnetization direction was attributed to magnetoelastic anisotropy. Finally; the temperature-dependent spin-reorientation transition was analyzed for Fe thicknesses close to tc. © 2013 AIP Publishing LLC;
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