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.

引用

页数：6

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