Imaging current-induced switching of antiferromagnetic domains in CuMnAs

Abstract

The magnetic order in antiferromagnetic (AF) materials is hard to control with external magnetic fields. However, recent advances in detecting and manipulating AF order electrically have opened up new prospects for these materials in basic and applied spintronics research. Using x-ray magnetic linear dichroism microscopy, we show here that staggered effective fields generated by electrical current can induce reproducible and reversible modification of the antiferromagnetic domain structure in microdevices fabricated from a tetragonal CuMnAs thin film. The current-induced domain switching is inhomogeneous at the submicron level. A clear correlation between the average domain orientation and the anisotropy of the electrical resistance is demonstrated.

5 pages, 4 figures

References in corpus (4)

• Spin pumping and spin-transfer torques in antiferromagnets
• Phenomenology of Current-Induced Dynamics in Antiferromagnets
• Effect of Polarized Current on the Magnetic State of Antiferromagnet
• Origin and tailoring of the antiferromagnetic domain structure in $\alpha$-Fe${}_2$O${}_3$ thin films unraveled by statistical analysis of dichroic spectro-microscopy (X-PEEM) images

Cited by in corpus (14)

• Writing and Reading antiferromagnetic Mn${}_2$Au: Néel spin-orbit torques and large anisotropic magnetoresistance
• Perspective on Metallic Antiferromagnets
• Imaging of current induced Néel vector switching in antiferromagnetic Mn${}_2$Au
• Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs
• Molecular beam epitaxy of CuMnAs
• Ultrafast depinning of domain wall in notched antiferromagnetic nanostructures
• Low-Energy Switching of Antiferromagnetic CuMnAs/ GaP Using sub-10 Nanosecond Current Pulses
• Magnetocrystalline anisotropy of the easy-plane metallic antiferromagnet Fe${}_2$As
• Imaging Domains in a Zero-Moment Half Metal
• Ferroelectric control of Néel vector in L10 type of antiferromagnetic films
• Antiferromagnetic multi-level memory cell
• Spintronics for neuromorphic computing
• Spin-transport, spin-torque and memory in antiferromagnetic devices: Part of a collection of reviews on antiferromagnetic spintronics
• A journey into the tuneable antiferromagnetic spin textures of BiFeO3