We describe measurements of the uniaxial magnetic anisotropy and spin-flop rotation of the N\'eel 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 electron transport measurements of the spin-flop rotation in the same layer, with a similar shape and hysteresis of the obtained curves, while the neutron measurements provide a quantitative determination of the spin flop extent throughout the antiferromagnet layer.
@article{arxiv.2210.11290,
title = {Probing the Manipulation of Antiferromagnetic Order in CuMnAs Films Using Neutron Diffraction},
author = {Stuart F. Poole and Luke X. Barton and Mu Wang and Pascal Manuel and Dmitri Khalyavin and Sean Langridge and Kevin W. Edmonds and Richard P. Campion and Vit Novák and Peter Wadley},
journal= {arXiv preprint arXiv:2210.11290},
year = {2022}
}
Comments
5 pages, 4 figures, includes supplementary information