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Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films
DOI:
10.1038/s41598-017-11653-8
Authors:
P.
Wadley
(University of Nottingham)
,
K. W.
Edmonds
(University of Nottingham)
,
M. R.
Shahedkhah
(University of Nottingham)
,
R. P.
Campion
(University of Nottingham)
,
B. L.
Gallagher
(University of Nottingham)
,
J.
Železný
(Institute of Physics, Czech Academy of Sciences; Max Planck Institute for Chemical Physics of Solids)
,
J.
Kuneš
(Institute of Physics, Czech Academy of Sciences; Institute of Solid State Physics, TU Wien)
,
V.
Novák
(Institute of Physics, Czech Academy of Sciences)
,
T.
Jungwirth
(University of Nottingham; Institute of Physics, Czech Academy of Sciences)
,
V.
Saidl
(Institute of Physics, Czech Academy of Sciences; Charles University)
,
P.
Němec
(Charles University)
,
F.
Maccherozzi
(Diamond Light Source)
,
S. S.
Dhesi
(Diamond Light Source)
Co-authored by industrial partner:
No
Type:
Journal Paper
Journal:
Scientific Reports
, VOL 7
State:
Published (Approved)
Published:
September 2017
Diamond Proposal Number(s):
9993

Abstract: Using x-ray magnetic circular and linear dichroism techniques, we demonstrate a collinear exchange coupling between an epitaxial antiferromagnet, tetragonal CuMnAs, and an Fe surface layer. A small uncompensated Mn magnetic moment is observed which is antiparallel to the Fe magnetization. The staggered magnetization of the 5 nm thick CuMnAs layer is rotatable under small magnetic fields, due to the interlayer exchange coupling. This allows us to obtain the x-ray magnetic linear dichroism spectra for different crystalline orientations of CuMnAs in the (001) plane. This is a key parameter for enabling the understanding of domain structures in CuMnAs imaged using x-ray magnetic linear dichroism microscopy techniques.
Journal Keywords: Magnetic properties and materials; Spintronics
Subject Areas:
Physics,
Materials
Instruments:
I06-Nanoscience
Documents:
s41598-017-11653-8.pdf
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