Bibliographic Details
| Title: |
Tilted spin current generated by the collinear antiferromagnet RuO2 |
| Authors: |
Bose, Arnab, Schreiber, Nathaniel J., Jain, Rakshit, Shao, Ding-Fu, Nair, Hari P., Sun, Jiaxin, Zhang, Xiyue S., Muller, David A., Tsymbal, Evgeny Y., Schlom, Darrell G., Ralph, Daniel C. |
| Source: |
Nature Electronics 5, 267 (2022) |
| Publication Year: |
2021 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Mesoscale and Nanoscale Physics |
| More Details: |
We report measurements demonstrating that when the Neel vector of the collinear antiferromagnet RuO2 is appropriately canted relative to the sample plane, the antiferromagnet generates a substantial out of plane damping-like torque. The measurements are in good accord with predictions that when an electric field, E is applied to the spin split band structure of RuO2 it can cause a strong transverse spin current even in the absence of spin-orbit coupling. This produces characteristic changes in all three components of the E induced torque vector as a function of the angle of E relative to the crystal axes, corresponding to a spin current with a well defined tilted spin orientation s approximately (but not exactly) parallel to the Neel vector, flowing perpendicular to both E and S. This angular dependence is the signature of an antiferromagnetic spin Hall effect with symmetries that are distinct from other mechanisms of spin-current generation reported in antiferromagnetic or ferromagnetic materials. |
| Document Type: |
Working Paper |
| DOI: |
10.1038/s41928-022-00744-8 |
| Access URL: |
http://arxiv.org/abs/2108.09150 |
| Accession Number: |
edsarx.2108.09150 |
| Database: |
arXiv |
