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

被引：23
|
作者：
Koziol-Rachwal, A. [1 ]
Skowronski, W. [2 ]
Slezak, T. [1 ]
Wilgocka-Slezak, D. [3 ]
Przewoznik, J. [1 ]
Stobiecki, T. [2 ]
Qin, Q. H. [4 ]
van Dijken, S. [4 ]
Korecki, J. [1 ,3 ]
机构：
[1] AGH Univ Sci & Technol, Fac Phys & Appl Comp Sci, Al Mickiewicza 30, PL-30059 Krakow, Poland
[2] AGH Univ Sci & Technol, Dept Elect, PL-30059 Krakow, Poland
[3] Polish Acad Sci, Jerzy Haber Inst Catalysis & Surface Chem, PL-30239 Krakow, Poland
[4] Aalto Univ, Sch Sci, Dept Appl Phys, NanoSpin, FI-00076 Aalto, Finland
来源：
JOURNAL OF APPLIED PHYSICS | 2013年 / 114卷 / 22期
关键词：
REORIENTATION; DEPENDENCE; FE;
D O I：
10.1063/1.4843675
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
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 angstrom to 14 angstrom. For the iron deposited at 140 K, we obtained perpendicular magnetization at room temperature below the critical thickness of t(c) (9 +/- 1)angstrom. In the vicinity of t(c), 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 t(c). (C) 2013 AIP Publishing LLC.
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页数：6
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