Magnetic interlayer coupling in Fe/h-BN/Ni(111) probed by soft X-ray magnetic circular dichroism

被引：1
|
作者：
Tadano, Wataru [1 ]
Sawada, Masahiro [2 ]
Namatame, Hirofumi [2 ]
Taniguchi, Masaki [2 ]
机构：
[1] Hiroshima Univ, Grad Sch Sci, 1-3-1 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan
[2] Hiroshima Univ, Hiroshima Synchrotron Radiat Ctr, 2-313 Kagamiyama, Higashihiroshima, Hiroshima 7398526, Japan
来源：
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2017年 / 220卷
关键词：
X-ray absorption spectroscopy; Magnetic circular dichroism; Magnetization curve; Magnetic hetero-junction; Monolayer film; Magnetic coupling; HEXAGONAL BORON-NITRIDE; FILMS; HISOR-BL14; SURFACE;
D O I：
10.1016/j.elspec.2016.12.002
中图分类号：
O433 [光谱学];
学科分类号：
0703 ; 070302 ;
摘要：
We investigated magnetic interlayer coupling between Fe overlayers and Ni substrate through an intermediate monolayer of hexagonal boron nitride. We performed magnetic circular dichroism experiments at L-2,L-3 absorption edges of Fe and Ni for ultrathin-layered structure of Fe/h-BN/Ni(111) grown in-situ in ultra high vacuum environment. Antiferromagnetic coupling has been revealed with a direct evidence of opposite magnetic circular dichroism signal of Fe to Ni in the absorption spectra. The antiferromagnetic coupling energy is estimated to be in order of a hundred mu eV at the interface. The comparatively small coupling energy means controllability of magnetic alignment with weak external magnetic field. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：105 / 108
页数：4
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