期刊
SCIENTIFIC REPORTS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-017-11653-8
关键词
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资金
- Ministry of Education of the Czech Republic [LM2015087]
- Grant Agency of the Czech Republic Grant [14-37427G]
- University of Nottingham Engineering and Physical Sciences Research Council Impact Acceleration account [EP/K503800/1]
- Leverhulme Trust
- Engineering and Physical Sciences Research Council [EP/P019749/1, EP/K027808/1] Funding Source: researchfish
- EPSRC [EP/P019749/1, EP/K027808/1] Funding Source: UKRI
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.
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