Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction

Poole, S. F.; Barton, L. X.; Wang, M.; Manuel, P.; Khalyavin, D.; Langridge, S.; Edmonds, K. W.; Campion, R. P.; Novák, V.; Wadley, P.

Abstract

We describe measurements of the uniaxial magnetic anisotropy and spin-flop rotation of the Néel vector in antiferromagnetic CuMnAs thin films using neutron diffraction. The suppression of the magnetic (100) peak under magnetic fields is observed for films as thin as 20 nm, indicating that they undergo a spin-flop transition. Good agreement is found between neutron diffraction and electrical transport measurements of the spin-flop rotation in the same layer with similar shape and hysteresis of the obtained curves, while the neutron measurements provide a quantitative determination of the spin flop extending throughout the antiferromagnet layer.

Citation

Poole, S. F., Barton, L. X., Wang, M., Manuel, P., Khalyavin, D., Langridge, S., …Wadley, P. (2022). Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction. Applied Physics Letters, 121(5), Article 052402. https://doi.org/10.1063/5.0103390

• Journal Article Type: Article
• Acceptance Date: Jul 16, 2022
• Online Publication Date: Aug 3, 2022
• Publication Date: Aug 1, 2022
• Deposit Date: Aug 4, 2022
• Publicly Available Date: Aug 4, 2022
• Journal: Applied Physics Letters
• Print ISSN: 0003-6951
• Electronic ISSN: 1077-3118
• Publisher: American Institute of Physics
• Peer Reviewed: Peer Reviewed
• Volume: 121
• Issue: 5
• Article Number: 052402
• DOI: https://doi.org/10.1063/5.0103390
• Keywords: Physics and Astronomy (miscellaneous)
• Public URL: https://nottingham-repository.worktribe.com/output/9585633
• Publisher URL: https://aip.scitation.org/toc/apl/121/5