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Topological Superconductivity in Altermagnetic Heterostructures on a Honeycomb Lattice
George McArdle, Brian Kiraly, Peter Wadley +1
Altermagnet-superconductor heterostructures have been shown, in principle, to provide a route towards realising topological superconductivity, and therefore host topologically prot…
Unconventional relativistic spin polarization of electronic bands in an altermagnet
A. Dal Din, D. A. Usanov, L. Šmejkal +22
Altermagnetism is a recently identified phase with a d, g or i-wave spin symmetry of magnetic ordering. Its discovery opens new research fronts at intersections of magnetism and sp…
Magneto-Acoustic Waves in antiferromagnetic CuMnAs excited by Surface Acoustic Waves
M. Waqas Khaliq, Oliver Amin, Alberto Hernández-Mínguez +15
Magnetoelastic effects in antiferromagnetic CuMnAs are investigated by applying dynamic strain in the 0.01% range through surface acoustic waves in the GaAs substrate. The magnetic…
Emerging edge states on the surface of the epitaxial semimetal CuMnAs thin film
Giang D. Nguyen, Krishna Pitike, Peter Wadley +4
Epitaxial thin films of CuMnAs have recently attracted attention due to their potential to host relativistic antiferromagnetic spintronics and exotic topological physics. Here we r…
Negative spin-Hall angle and anisotropic spin-orbit torques in epitaxial IrMn
V. Tshitoyan, P. Wadley, M. Wang +2
A spin-torque ferromagnetic resonance study is performed in epitaxial bilayers with different Fe thicknesses. We measure a negative spin-Hall angle o…
Stability and lifetime of antiferromagnetic skyrmions
P. F. Bessarab, D. Yudin, D. R. Gulevich +3
The two-dimensional Heisenberg exchange model with out-of-plane anisotropy and a Dzyaloshinskii-Moriya interaction is employed to investigate the lifetime and stability of antiferr…
Spin-transport, spin-torque and memory in antiferromagnetic devices: Part of a collection of reviews on antiferromagnetic spintronics
J. Železný, P. Wadley, K. Olejník. A. Hoffmann +1
Ferromagnets are key materials for sensing and memory applications. In contrast, antiferromagnets that represent the more common form of magnetically ordered materials, have so far…
Control of antiferromagnetic spin axis orientation in bilayer Fe/CuMnAs films
P. Wadley, K. W. Edmonds, M. R. Shahedkhah +10
Using x-ray magnetic circular and linear dichroism techniques, we demonstrate a collinear exchange coupling between an epitaxial antiferromagnet, tetragonal CuMnAs, and an Fe surfa…
Imaging current-induced switching of antiferromagnetic domains in CuMnAs
M. J. Grzybowski, P. Wadley, K. W. Edmonds +9
The magnetic order in antiferromagnetic (AF) materials is hard to control with external magnetic fields. However, recent advances in detecting and manipulating AF order electricall…
Electrical switching of an antiferromagnet
Peter Wadley, Bryn Howells, Jakub Zelezny +10
Louis Neel pointed out in his Nobel lecture that while abundant and interesting from a theoretical viewpoint, antiferromagnets did not seem to have any applications. Indeed, the al…
Element-resolved orbital polarization in (III,Mn)As ferromagnetic semiconductors from edge x-ray magnetic circular dichroism
P. Wadley, A. A. Freeman, K. W. Edmonds +9
Using x-ray magnetic circular dichroism (XMCD), we determine the element-specific character and polarization of unoccupied states near the Fermi level in (Ga,Mn)As and (In,Ga,Mn)As…