Analysis of oxygen induced anisotropy crossover in Pt/Co/MOx trilayers

被引：197

作者：

Manchon, A. ^{[1
]}

Ducruet, C. ^{[1
]}

Lombard, L. ^{[1
]}

Auffret, S. ^{[1
]}

Rodmacq, B. ^{[1
]}

Dieny, B. ^{[1
]}

Pizzini, S. ^{[2
]}

Vogel, J. ^{[2
]}

Uhlir, V. ^{[2
]}

Hochstrasser, M. ^{[3
]}

Panaccione, G. ^{[4
]}

机构：

[1] CEA, CNRS, URA 2512, SPINTEC, F-38054 Grenoble 9, France

[2] CNRS, Inst Neel, UJF, F-38042 Grenoble 9, France

[3] ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland

[4] CNR, INFM, Lab TASC, I-34012 Trieste, Italy

来源：

JOURNAL OF APPLIED PHYSICS | 2008年 / 104卷 / 04期

关键词：

D O I：

10.1063/1.2969711

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Extraordinary Hall effect and x-ray spectroscopy measurements have been performed on a series of Pt/Co/MOx trilayers (M=Al, Mg, Ta, etc.) in order to investigate the role of oxidation in the onset of perpendicular magnetic anisotropy at the Co/MOx interface. It is observed that varying the plasma oxidation time modifies the magnetic properties of the Co layer, inducing a magnetic anisotropy crossover from in plane to out of plane. We focused on the influence of plasma oxidation on Pt/Co/AlOx perpendicular magnetic anisotropy. The interfacial electronic structure is analyzed via x-ray photoelectron spectroscopy measurements. It is shown that the maximum of out-of-plane magnetic anisotropy corresponds to the appearance of a significant density of Co-O bondings at the Co/AlOx interface. (C) 2008 American Institute of Physics.

引用

页数：7

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