Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium
dc.contributor.author | Gibbons, Jonathan | |
dc.contributor.author | Dohi, Takaaki | |
dc.contributor.author | Amin, Vivek P. | |
dc.contributor.author | Xue, Fei | |
dc.contributor.author | Ren, Haowen | |
dc.contributor.author | Xu, Jun-Wen | |
dc.contributor.author | Arava, Hanu | |
dc.contributor.author | Shim, Soho | |
dc.contributor.author | Saglam, Hilal | |
dc.contributor.author | Liu, Yuzi | |
dc.contributor.author | Pearson, John E. | |
dc.contributor.author | Mason, Nadya | |
dc.contributor.author | Petford-Long, Amanda K. | |
dc.contributor.author | Haney, Paul M. | |
dc.contributor.author | Stiles, Mark D. | |
dc.contributor.author | Fullerton, Eric E. | |
dc.contributor.author | Kent, Andrew D. | |
dc.contributor.author | Fukami, Shunsuke | |
dc.contributor.author | Hoffman, Axel | |
dc.contributor.department | Physics, School of Science | |
dc.date.accessioned | 2023-12-08T22:24:14Z | |
dc.date.available | 2023-12-08T22:24:14Z | |
dc.date.issued | 2022-08 | |
dc.description.abstract | Spin torque is a promising tool for driving magnetization dynamics for computing technologies. These torques can be easily produced by spin-orbit effects, but for most conventional spin source materials, a high degree of crystal symmetry limits the geometry of the spin torques produced. Magnetic ordering is one way to reduce the symmetry of a material and allow exotic torques, and antiferromagnets are particularly promising because they are robust against external fields. We present spin torque ferromagnetic resonance (ST-FMR) measurements and second harmonic Hall measurements characterizing the spin torques in antiferromagnetic iron rhodium alloy. We report extremely large, strongly temperature-dependent exotic spin torques with a geometry apparently defined by the magnetic ordering direction. We find the spin torque efficiency of iron rhodium to be (207 ± 94)% at 170 K and (88 ± 32)% at room temperature. We support our conclusions with theoretical calculations showing how the antiferromagnetic ordering in iron rhodium gives rise to such exotic torques. | |
dc.eprint.version | Final published version | |
dc.identifier.citation | Gibbons, J., Dohi, T., Amin, V. P., Xue, F., Ren, H., Xu, J.-W., Arava, H., Shim, S., Saglam, H., Liu, Y., Pearson, J. E., Mason, N., Petford-Long, A. K., Haney, P. M., Stiles, M. D., Fullerton, E. E., Kent, A. D., Fukami, S., & Hoffmann, A. (2022). Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium. Physical Review Applied, 18(2), 024075. https://doi.org/10.1103/PhysRevApplied.18.024075 | |
dc.identifier.uri | https://hdl.handle.net/1805/37306 | |
dc.language.iso | en_US | |
dc.publisher | APS | |
dc.relation.isversionof | 10.1103/PhysRevApplied.18.024075 | |
dc.relation.journal | Physical Review Applied | |
dc.rights | Publisher Policy | |
dc.source | Publisher | |
dc.subject | Spin Hall effect | |
dc.subject | Spin current | |
dc.subject | Spin torque | |
dc.subject | Antiferromagnets | |
dc.subject | Ferromagnetic resonance | |
dc.subject | Hall bar | |
dc.subject | Resistivity measurements | |
dc.title | Large Exotic Spin Torques in Antiferromagnetic Iron Rhodium | |
dc.type | Article |