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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
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.
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页码:105 / 108
页数:4
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