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Antiferromagnetic structure in tetragonal CuMnAs thin films

Wadley, P.; Hills, Victoria Anne; Shahedkhah, M. R.; Edmonds, K. W.; Campion, R. P.; Nov�k, V.; Ouladdiaf, B.; Khalyavin, D.; Langridge, S.; Saidl, V.; N?mec, P.; Rushforth, A. W.; Gallagher, B. L.; Dhesi, S. S.; Maccherozzi, F.; �elezn�, J.; Jungwirth, T.

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Authors

PETER WADLEY PETER.WADLEY@NOTTINGHAM.AC.UK
Assistant Professor in Experimental Condensed Matter Physics

Victoria Anne Hills

M. R. Shahedkhah

KEVIN EDMONDS kevin.edmonds@nottingham.ac.uk
Associate Professor & Reader in Physics

V. Nov�k

B. Ouladdiaf

D. Khalyavin

S. Langridge

V. Saidl

P. N?mec

B. L. Gallagher

S. S. Dhesi

F. Maccherozzi

J. �elezn�

TOMAS JUNGWIRTH tomas.jungwirth@nottingham.ac.uk
Research Professor of Ferromagnetic Semiconductors



Abstract

Tetragonal CuMnAs is an antiferromagnetic material with favourable properties for applications in spintronics. Using a combination of neutron diffraction and x-ray magnetic linear dichroism, we determine the spin axis and magnetic structure in tetragonal CuMnAs, and reveal the presence of an interfacial uniaxial magnetic anisotropy. From the temperature-dependence of the neutron diffraction intensities, the Néel temperature is shown to be (480 ± 5) K. Ab initio calculations indicate a weak anisotropy in the (ab) plane for bulk crystals, with a large anisotropy energy barrier between in-plane and perpendicular-to-plane directions.

Citation

Wadley, P., Hills, V. A., Shahedkhah, M. R., Edmonds, K. W., Campion, R. P., Novák, V., …Jungwirth, T. (2015). Antiferromagnetic structure in tetragonal CuMnAs thin films. Scientific Reports, 5(1), Article 17079. https://doi.org/10.1038/srep17079

Journal Article Type Article
Acceptance Date Oct 26, 2015
Online Publication Date Nov 25, 2015
Publication Date Nov 25, 2015
Deposit Date Mar 7, 2017
Publicly Available Date Mar 29, 2024
Journal Scientific Reports
Electronic ISSN 2045-2322
Publisher Nature Publishing Group
Peer Reviewed Peer Reviewed
Volume 5
Issue 1
Article Number 17079
DOI https://doi.org/10.1038/srep17079
Public URL https://nottingham-repository.worktribe.com/output/765477
Publisher URL http://www.nature.com/articles/srep17079
Related Public URLs http://www.nature.com/articles/srep17079

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