Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature (2023)
Journal Article
Amin, O. J., Poole, S. F., Reimers, S., Barton, L. X., Dal Din, A., Maccherozzi, F., …Wadley, P. (2023). Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature. Nature Nanotechnology, https://doi.org/10.1038/s41565-023-01386-3

Topologically protected magnetic textures are promising candidates for information carriers in future memory devices, as they can be efficiently propelled at very high velocities using current-induced spin torques. These textures—nanoscale whirls in... Read More about Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature.

Experimental electronic structure of the electrically switchable antiferromagnet CuMnAs (2023)
Journal Article
Linn, A. G., Hao, P., Gordon, K. N., Narayan, D., Berggren, B. S., Speiser, N., …Dessau, D. S. (2023). Experimental electronic structure of the electrically switchable antiferromagnet CuMnAs. npj Quantum Materials, 8(1), Article 19. https://doi.org/10.1038/s41535-023-00554-x

Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction (2022)
Journal Article
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

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... Read More about Probing the manipulation of antiferromagnetic order in CuMnAs films using neutron diffraction.

Atomically sharp domain walls in an antiferromagnet (2022)
Journal Article
Krizek, F., Reimers, S., Kašpar, Z., Marmodoro, A., Michalička, J., Man, O., …Jungwirth, T. (2022). Atomically sharp domain walls in an antiferromagnet. Science Advances, 8(13), https://doi.org/10.1126/sciadv.abn3535

The interest in understanding scaling limits of magnetic textures such as domain walls spans the entire field of magnetism from its physical fundamentals to applications in information technologies. Here, we explore antiferromagnetic CuMnAs in which... Read More about Atomically sharp domain walls in an antiferromagnet.

Defect-driven antiferromagnetic domain walls in CuMnAs films (2022)
Journal Article
Reimers, S., Kriegner, D., Gomonay, O., Carbone, D., Krizek, F., Novák, V., …Edmonds, K. W. (2022). Defect-driven antiferromagnetic domain walls in CuMnAs films. Nature Communications, 13(1), Article 724. https://doi.org/10.1038/s41467-022-28311-x

Efficient manipulation of antiferromagnetic (AF) domains and domain walls has opened up new avenues of research towards ultrafast, high-density spintronic devices. AF domain structures are known to be sensitive to magnetoelastic effects, but the micr... Read More about Defect-driven antiferromagnetic domain walls in CuMnAs films.

Quenching of an antiferromagnet into high resistivity states using electrical or ultrashort optical pulses (2020)
Journal Article
Kašpar, Z., Surýnek, M., Zubáč, J., Krizek, F., Novák, V., Campion, R. P., …Jungwirth, T. (2021). Quenching of an antiferromagnet into high resistivity states using electrical or ultrashort optical pulses. Nature Electronics, 4(1), 30-37. https://doi.org/10.1038/s41928-020-00506-4

Antiferromagnets are of potential use in the development of spintronic devices due to their ultrafast dynamics, insensitivity to external magnetic fields and absence of magnetic stray fields. Similar to their ferromagnetic counterparts, antiferromagn... Read More about Quenching of an antiferromagnet into high resistivity states using electrical or ultrashort optical pulses.

Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs (2020)
Journal Article
Janda, T., Godinho, J., Ostatnicky, T., Pfitzner, E., Ulrich, G., Hoehl, A., …Wunderlich, J. (2020). Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs. Physical Review Materials, 4(9), Article 094413. https://doi.org/10.1103/physrevmaterials.4.094413

Antiferromagnets offer spintronic device characteristics unparalleled in ferromagnets owing to their lack of stray fields, THz spin dynamics, and rich materials landscape. Microscopic imaging of antiferromagnetic domains is one of the key prerequisit... Read More about Magneto-Seebeck microscopy of domain switching in collinear antiferromagnet CuMnAs.

Investigation of magnetic anisotropy and heat dissipation in thin films of compensated antiferromagnet CuMnAs by pump–probe experiment (2020)
Journal Article
Surýnek, M., Saidl, V., Kašpar, Z., Novák, V., Campion, R. P., Wadley, P., & Němec, P. (2020). Investigation of magnetic anisotropy and heat dissipation in thin films of compensated antiferromagnet CuMnAs by pump–probe experiment. Journal of Applied Physics, 127(23), 233904. https://doi.org/10.1063/5.0006185

We recently reported on a method to determine the easy axis position in a 10 nm thick film of the fully compensated antiferromagnet CuMnAs. The film had a uniaxial magnetic anisotropy and the technique utilized a magneto-optical pump and probe experi... Read More about Investigation of magnetic anisotropy and heat dissipation in thin films of compensated antiferromagnet CuMnAs by pump–probe experiment.

Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses (2020)
Journal Article
Omari, K. A., Barton, L. X., Amin, O., Campion, R. P., Rushforth, A. W., Kent, A. J., …Edmonds, K. W. (2020). Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses. Journal of Applied Physics, 127(19), Article 193906. https://doi.org/10.1063/5.0006183

The recently discovered electrical-induced switching of antiferromagnetic (AF) materials that have spatial inversion asymmetry has enriched the field of spintronics immensely and opened the door for the concept of antiferromagnetic memory devices. Cu... Read More about Low-energy switching of antiferromagnetic CuMnAs/GaP using sub-10 nanosecond current pulses.

Gating effects in antiferromagnetic CuMnAs (2019)
Journal Article
Grzybowski, M. J., Wadley, P., Edmonds, K. W., Campion, R. P., Dybko, K., Majewicz, M., …Dietl, T. (2019). Gating effects in antiferromagnetic CuMnAs. AIP Advances, 9(11), 1-5. https://doi.org/10.1063/1.5124354

Antiferromagnets (AFs) attract much attention due to their potential applications in spintronics. Both the electric current and the electric field are considered as tools suitable to control the properties and the Néel vector direction of AFs. Among... Read More about Gating effects in antiferromagnetic CuMnAs.