Perpendicular magnetic anisotropy of cobalt films intercalated under graphene

被引：81
|
作者：
Rougemaille, N. [1 ,2 ]
N'Diaye, A. T. [3 ]
Coraux, J. [1 ,2 ]
Vo-Van, C. [1 ,2 ]
Fruchart, O. [1 ,2 ]
Schmid, A. K. [3 ]
机构：
[1] CNRS, Inst NEEL, F-38042 Grenoble 9, France
[2] Univ Grenoble 1, F-38042 Grenoble 9, France
[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA
来源：
APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期
关键词：
SURFACE;
D O I：
10.1063/1.4749818
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetic properties of nanometer-thick Co films intercalated at the graphene/Ir(111) interface are investigated using spin-polarized low-energy electron microscopy and Auger electron spectroscopy. We show that the graphene top layer promotes perpendicular magnetic anisotropy in the Co film underneath, even for relatively thick intercalated deposits. The magnetic anisotropy energy is significantly larger for the graphene/Co interface than for the free Co surface. Hybridization of the graphene and Co electron orbitals is believed to be at the origin of the observed perpendicular magnetic anisotropy. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4749818]
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页数：3
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