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Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy
Open accessAbstract
Magnetic skyrmions are topologically protected spin textures with attractive properties suitable for high-density and low-power spintronic device applications. Much effort has been dedicated to understanding the dynamical behaviours of the magnetic skyrmions. However, experimental observation of the ultrafast dynamics of this chiral magnetic texture in real space, which is the hallmark of its quasiparticle nature, has so far remained elusive. Here, we report nanosecond-dynamics of a 100nm-diameter magnetic skyrmion during a current pulse application, using a time-resolved pump-probe soft X-ray imaging technique. We demonstrate that distinct dynamic excitation states of magnetic skyrmions, triggered by current-induced spin–orbit torques, can be reliably tuned by changing the magnitude of spin–orbit torques. Our findings show that the dynamics of magnetic skyrmions can be controlled by the spin–orbit torque on the nanosecond time scale, which points to exciting opportunities for ultrafast and novel skyrmionic applications in the future.
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Cites
Anisotropic Superexchange Interaction and Weak Ferromagnetism
Moriya, T. (1960) · Physical Review · doi:10.1103/physrev.120.91 · Cited by 7,234
Cited by
Observation of room-temperature polar skyrmions
Das, S., Tang, Y. L., Hong, Z., Gonçalves, M. A. P., McCarter, M. R., Klewe, C., Nguyen, K. X., Gómez-Ortiz, F., Shafer, P., Arenholz, E., et al. (2019) · Nature · doi:10.1038/s41586-019-1092-8 · Cited by 771
A comprehensive review on emerging artificial neuromorphic devices
Zhu, J., Zhang, T., Yang, Y., & Huang, R. (2020) · Applied Physics Reviews · doi:10.1063/1.5118217 · Cited by 758
Tokura, Y., & Kanazawa, N. (2021) · Chemical Reviews · doi:10.1021/acs.chemrev.0c00297 · Cited by 726
Perspective: Magnetic skyrmions—Overview of recent progress in an active research field
Everschor-Sitte, K., Masell, J., Reeve, R. M., & Kläui, M. (2018) · Journal of Applied Physics · doi:10.1063/1.5048972 · Cited by 601
Skyrmions in magnetic multilayers
Jiang, W., Chen, G., Liu, K., Zang, J., te Velthuis, S. G. E., & Hoffmann, A. (2017) · Physics Reports · doi:10.1016/j.physrep.2017.08.001 · Cited by 566
Metadata
- Authors
- Woo, S., Song, K. M., Han, H.-S., Jung, M.-S., Im, M.-Y., Lee, K.-S., Song, K. S., Fischer, P., Hong, J.-I., Choi, J. W., Min, B.-C., Koo, H. C., & Chang, J.
- Venue
- Nature Communications
- Published
- 2017-05-24
- Volume
- 8
- Issue
- 1
- Pages
- 15573-15573
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2617436937
- Cited by
- 196
- References
- 1
- FWCI
- 9.71
- Type
- journal article
- Language
- en
- Open access
- gold
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- Woo, S., Song, K. M., Han, H.-S., Jung, M.-S., Im, M.-Y., Lee, K.-S., Song, K. S., Fischer, P., Hong, J.-I., Choi, J. W., Min, B.-C., Koo, H. C., & Chang, J. (2017). Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy. Nature Communications. https://doi.org/10.1038/ncomms15573
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