Quantifying perpendicular magnetic anisotropy at the Fe-MgO(001) interface
Quantifying perpendicular magnetic anisotropy at the Fe-MgO(001) interface
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DOI：
10.1063/1.4798291
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发表时间：
2013-03-25
影响因子：
4
通讯作者：
Andrieu, S.
中科院分区：
文献类型：
--
作者：
Lambert, C-H.;Rajanikanth, A.;Andrieu, S.
结果表明，在完全外延的MgO/V/Fe/MgO（001）和MgO/Cr/Fe/MgO（001）异质结构中，Fe-MgO界面具有1.0 +/-0.1erg/cm（2）的强垂直磁各向异性。的符号和振幅的总各向异性量化为铁厚度的函数，使用磁力计和铁磁共振。V/Fe/MgO中有6个Fe单层出现从面外各向异性到面内各向异性的转变，而Cr/Fe/MgO中只有4个单层出现从面外各向异性到面内各向异性的转变。在这两个系统中的Fe磁化强度和有效的各向异性的详细研究解释了这种差异，并量化的Fe-MgO界面各向异性。(C)2013年美国物理学会。[http：//dx.doi.org/10.1063/1.4798291]
We show that Fe-MgO interfaces possess strong perpendicular magnetic anisotropy of 1.0 +/- 0.1 erg/cm(2) in fully epitaxial MgO/V/Fe/MgO(001) and MgO/Cr/Fe/MgO(001) heterostructures. The sign and amplitude of the total anisotropy are quantified as a function of Fe thickness using magnetometry and ferromagnetic resonance. There is a transition from out-of-plane to in-plane anisotropy for 6 Fe monolayers in V/Fe/MgO and only 4 monolayers in Cr/Fe/MgO. A detailed study of the Fe magnetization and effective anisotropy in both systems explains this difference and quantifies the Fe-MgO interface anisotropy. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798291]