Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films

Wadley, P., Edmonds, K.W., Shahedkhah, M.R., Campion, R.P., Gallagher, B.L., Železný, J., Kunes, J., Novák, V., Jungwirth, T., Saidl, V., Němec, P., Maccherozzi, F. and Dhesi, S.S. (2017) Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films. Scientific Reports, 7 . 11147/1-11147/6. ISSN 2045-2322

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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.

Item Type: Article
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number:
Depositing User: Edmonds, Kevin
Date Deposited: 25 Sep 2017 13:23
Last Modified: 04 May 2020 19:05

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